Tissot Seastar Chronograph 45mm Blue Dial
The Tissot Seastar Chronograph 45mm Blue Dial combines bold Swiss sports-watch design, professional diving inspiration and precise chronograph functionality. Distinguished by its striking blue gradient dial, dark diving bezel and black rubber strap, reference T120.417.17.041.00 offers a powerful contemporary appearance together with the serious technical capability expected from the Seastar 1000 collection.
Built around a substantial 45.5 mm 316L stainless-steel case, the watch creates commanding wrist presence without sacrificing the functional proportions required for excellent readability. Its 12.82 mm thickness gives the chronograph a robust profile, while the black rubber strap reinforces its aquatic and performance-oriented character.
The blue gradient dial introduces depth and visual character, becoming darker towards its outer areas and creating an attractive contrast with the stainless-steel case. Super-LumiNova® on the hands and visible elements improves readability in reduced lighting conditions.
Inside, a Swiss Quartz Chronograph movement provides accurate everyday timekeeping together with a comprehensive selection of timing functions. The watch also offers impressive 30 bar / 300 metres / 1000 feet water resistance, making its diving inspiration much more than a purely aesthetic feature.
Discover more high-performance Swiss diving watches in our Tissot Seastar Collection.
Powerful 45.5mm Chronograph Design
The Tissot Seastar Chronograph 45mm Blue Dial is designed for someone who appreciates substantial sports watches with unmistakable wrist presence.
Tissot officially specifies the case at 45.50 mm wide and 45.50 mm long, with a thickness of 12.82 mm and lug width of 22 mm. This particular rubber-strap configuration weighs approximately 109 g, making it significantly lighter on the wrist than the stainless-steel bracelet versions of the Seastar chronograph.
The large case provides ample space for the chronograph displays while maintaining clear separation between the primary time indication and additional timing functions.
Its 316L stainless-steel construction provides the durability expected from an aquatic sports watch, while the black rubber strap gives the Tissot Seastar Chronograph 45mm Blue Dial a more technical and relaxed personality.
The result is a substantial chronograph that feels purposeful rather than unnecessarily oversized.
Blue Gradient Chronograph Dial
The defining visual feature of the Tissot Seastar Chronograph 45mm Blue Dial is its distinctive blue gradient dial.
Rather than using a completely uniform blue surface, Tissot introduces tonal variation that creates additional depth and gives the dial a dynamic appearance as lighting conditions change. Tissot officially specifies the dial colour as Blue Gradient.
The chronograph subdials add visual complexity while preserving the strong instrument-inspired character of the Seastar collection.
Index hour markers maintain a contemporary sports-watch aesthetic, while Super-LumiNova® on the hands improves visibility in low-light conditions.
Combined with the dark bezel and black rubber strap, the blue gradient treatment gives this reference a distinctive aquatic character without sacrificing versatility.
Swiss Quartz Chronograph Precision
Inside the Tissot Seastar Chronograph 45mm Blue Dial is a precise Swiss Quartz Chronograph movement engineered for dependable accuracy and straightforward everyday ownership.
Its chronograph functionality includes a 30-minute counter, 1/10-second counter and central 60-second chronograph hand.
Tissot also incorporates ADD and SPLIT functions, providing additional flexibility when measuring consecutive or intermediate timing intervals.
A practical date display increases everyday functionality, while the EOL battery end-of-life indicator provides advance warning when the battery approaches replacement.
The quartz architecture makes the Tissot Seastar Chronograph 45mm Blue Dial particularly attractive to someone who wants the visual complexity and functionality of a chronograph without the winding and power-reserve considerations associated with a mechanical movement.
Explore more precise Swiss watches powered by a Swiss Quartz Movement.
Advanced Chronograph Functions
The chronograph gives the Tissot Seastar Chronograph 45mm Blue Dial considerably greater timing capability than a conventional three-hand sports watch.
The 30-minute counter can be used to measure longer events, while the 1/10-second counter provides additional precision for shorter timing intervals.
A central chronograph seconds hand provides clear visual measurement of elapsed seconds.
The ADD function allows consecutive timing periods to be combined, while the SPLIT function makes it possible to record intermediate intervals during a longer timed event.
These capabilities make the chronograph useful for sports, training, travel and everyday timing tasks while also contributing to the technical appearance of the dial.
Aluminium Diving Bezel
Surrounding the blue gradient dial is an anti-clockwise rotating bezel with an aluminium bezel ring.
The unidirectional design follows the traditional safety principle associated with diving watches, allowing elapsed time to be monitored while reducing the possibility of accidentally increasing the measured interval.
The dark bezel creates an attractive visual transition between the blue gradient dial and black rubber strap.
Its aluminium construction also gives the Tissot Seastar Chronograph 45mm Blue Dial a traditional diving-watch character that complements the modern chronograph architecture.
Sapphire Crystal with Double AR Coating
Protecting the sophisticated chronograph dial is scratch-resistant sapphire crystal with double-sided antireflective coating.
Tissot applies the antireflective treatment to both the upper and lower surfaces of the sapphire, helping reduce distracting reflections and preserve visibility under changing lighting conditions.
This is especially valuable on a chronograph, where the dial contains considerably more information than a conventional three-hand watch.
Sapphire also provides excellent resistance against everyday surface scratches, making it particularly appropriate for a watch designed around active use.
Screw-Down Diving Construction
The serious aquatic capability of the Tissot Seastar Chronograph 45mm Blue Dial is supported by robust screw-down architecture.
Tissot specifies the model with a screw-down crown and push-buttons, together with a screw-down caseback.
These components help maintain the integrity of the case under pressure and contribute to the substantial 300 m water-resistance rating.
Together with the sapphire crystal and unidirectional bezel, the screw-down construction gives the Seastar genuine technical substance rather than simply a diving-inspired appearance.
Black Rubber Strap
Unlike the steel-bracelet Seastar chronographs we completed immediately before it, reference T120.417.17.041.00 is fitted with a black nitrile rubber strap (HNBR-NBR).
The material is particularly appropriate for the aquatic character of the watch, providing flexibility and a distinctly sporty appearance.
Its black colour creates a strong contrast with the blue gradient dial while visually connecting with the dark diving bezel.
The rubber configuration also significantly reduces overall weight. At approximately 109 g, the Tissot Seastar Chronograph 45mm Blue Dial provides the substantial visual presence of a 45.5 mm chronograph without the additional weight associated with a full stainless-steel bracelet.
A standard buckle provides straightforward and secure fastening.
300m Water Resistance
The Tissot Seastar Chronograph 45mm Blue Dial is officially water resistant to an impressive 30 bar / 300 metres / 1000 feet.
This substantial specification is central to the identity of the Seastar 1000 collection.
Tissot combines the 300 m rating with screw-down controls, a screw-down caseback and anti-clockwise rotating bezel, creating a sports chronograph engineered with serious aquatic capability in mind.
The 1000 designation refers to approximately 1,000 feet of water resistance, equivalent to around 300 metres.
Chronograph Performance Meets Aquatic Capability
The Tissot Seastar Chronograph 45mm Blue Dial brings together two complementary aspects of modern sports-watch design.
Its Swiss Quartz Chronograph movement provides precise timekeeping together with sophisticated timing functions.
At the same time, 300 m water resistance, screw-down construction, a rotating diving bezel, Super-LumiNova® and a rubber strap give the watch genuine aquatic credentials.
The blue gradient dial ties these elements together visually, creating an unmistakable maritime character while remaining sophisticated enough for regular everyday wear.
A Bold Swiss Sports Chronograph
The Tissot Seastar Chronograph 45mm Blue Dial is an excellent choice for someone seeking a substantial Swiss chronograph with distinctive colour, precise timing and genuine sports-watch capability.
Its 45.5 mm stainless-steel case creates commanding presence, while the blue gradient dial and black rubber strap provide a contemporary combination with unmistakable aquatic character.
Swiss Quartz precision delivers reliable everyday performance, while sapphire crystal, chronograph functions, Super-LumiNova®, screw-down construction and 300 m water resistance provide serious technical substance.
For someone who wants a bold Swiss Made sports chronograph with exceptional everyday capability, the Tissot Seastar Chronograph 45mm Blue Dial offers an impressive balance of precision, durability and distinctive Seastar design.
Browse our complete selection of Swiss Made Tissot Watches and discover authentic Tissot timepieces for every style and occasion.
Who Is This Watch For?
The Tissot Seastar Chronograph 45mm Blue Dial is designed for someone who wants a bold Swiss sports chronograph with substantial aquatic capability but prefers the lighter, more technical feel of a rubber strap.
Its 45.5 mm stainless-steel case creates a powerful wrist presence, while the blue gradient dial, dark bezel and black rubber strap give the watch a distinctive maritime character.
The Tissot Seastar Chronograph 45mm Blue Dial is particularly attractive to wearers who value chronograph functionality but prefer the precision and convenience of quartz technology. Its 30-minute counter, 1/10-second measurement, ADD and SPLIT functions provide useful timing capability without the maintenance requirements of a mechanical chronograph.
Combined with 300 m water resistance, screw-down construction, sapphire crystal and a unidirectional rotating bezel, this Seastar delivers far more technical substance than an ordinary sports chronograph.
Why Choose the Tissot Seastar Chronograph 45mm Blue Dial?
The strength of the Tissot Seastar Chronograph 45mm Blue Dial lies in the combination of bold aesthetics, accurate timing and serious sports-watch engineering.
The blue gradient dial gives the watch a distinctive appearance, while the black rubber strap creates a more purposeful aquatic character than the stainless-steel bracelet versions.
Inside, the Swiss Quartz Chronograph movement provides precise everyday operation together with a 30-minute counter, 1/10-second counter, central chronograph seconds hand, ADD and SPLIT functionality.
An EOL battery indicator provides additional convenience, while scratch-resistant sapphire crystal with double-sided antireflective coating protects the dial.
Add a screw-down crown and push-buttons, anti-clockwise rotating bezel and 300 m / 1000 ft water resistance, and the result is a highly capable Swiss Made chronograph designed for both active and everyday use.
Why You’ll Love It
- Distinctive blue gradient dial
- Contrasting dark diving bezel
- Powerful 45.5 mm case
- Lightweight rubber-strap configuration
- Swiss Quartz Chronograph movement
- 30-minute chronograph counter
- 1/10-second chronograph precision
- Central 60-second chronograph hand
- ADD timing function
- SPLIT timing function
- EOL battery end-of-life indicator
- Practical date display
- 316L stainless-steel case
- Anti-clockwise rotating bezel
- Aluminium bezel ring
- Scratch-resistant sapphire crystal
- Double-sided antireflective coating
- Super-LumiNova® visibility
- Screw-down crown
- Screw-down chronograph push-buttons
- Screw-down caseback
- 300 m / 30 bar / 1000 ft water resistance
- Black HNBR-NBR rubber strap
- Standard buckle
- Approximately 109 g weight
- Swiss Made construction
- Exceptional sports-watch versatility
- Official 2-year Tissot warranty
Technical Specifications
- Reference / SKU: T120.417.17.041.00
- Collection: Sport / Seastar 1000
- Movement: Swiss Quartz Chronograph
- Battery: Renata 394
- Battery Voltage: 1.55 V
- Battery Indicator: EOL – Battery End-of-Life
- Main Function: Date
- Chronograph Counter: 30 Minutes
- Chronograph Precision: 1/10 Second
- Chronograph Seconds: Central 60-Second Chronograph Hand
- Additional Chronograph Functions: ADD and SPLIT
- Calibre: 13 ¼”’
- Movement Diameter: 29.80 mm
- Case Shape: Round
- Case Material: 316L Stainless Steel
- Case Length: 45.50 mm
- Case Width / Diameter: 45.50 mm
- Case Thickness: 12.82 mm
- Lug Width: 22 mm
- Weight: 109 g
- Crown: Screw-down
- Push-buttons: Screw-down
- Caseback: Screw-down
- Bezel: Anti-clockwise Rotating
- Bezel Material: Stainless Steel
- Bezel Ring: Aluminium
- Crystal: Scratch-resistant Sapphire Crystal
- Crystal Treatment: Double-sided Antireflective Coating
- Dial Colour: Blue Gradient
- Indexes: Index
- Luminescence: Super-LumiNova®
- Water Resistance: 30 bar / 300 m / 1000 ft
- Strap Material: HNBR-NBR Rubber
- Strap Colour: Black
- Strap Reference: T603047170
- Buckle: Standard Buckle
- Country of Manufacture: Switzerland
- Warranty: 2 Years
These specifications correspond to Tissot’s official technical information for reference T120.417.17.041.00.
Why Buy From KG Jewellery?
Purchasing the Tissot Seastar Chronograph 45mm Blue Dial from KG Jewellery means choosing an authentic Swiss Made timepiece from an Official Tissot Retailer in Greece.
Every Tissot watch supplied by KG Jewellery is brand new and accompanied by the official Tissot international warranty. Secure online payments, carefully protected packaging and professional customer support provide confidence throughout your purchase.
When you choose KG Jewellery, you benefit from:
- Official Tissot Retailer in Greece
- 100% Authentic Tissot Watches
- Official Tissot International Warranty
- Original Tissot Presentation Box
- Secure Online Payments
- Fast & Reliable Shipping
- Professional Customer Support
- Carefully Protected Packaging
What’s in the Box?
Your Tissot Seastar Chronograph 45mm Blue Dial is supplied with:
- Tissot Seastar 1000 Quartz Chronograph T120.417.17.041.00
- Original Tissot Presentation Box
- Official Tissot International Warranty
- Tissot Documentation
- Original Black Rubber Strap
Frequently Asked Questions
Is the Tissot Seastar Chronograph 45mm Blue Dial quartz?
Yes. The Tissot Seastar Chronograph 45mm Blue Dial uses a Swiss Quartz Chronograph movement designed for precise and dependable everyday timing.
Quartz technology provides excellent accuracy while avoiding the winding and power-reserve requirements associated with a mechanical chronograph.
What is the exact case size?
Tissot officially specifies reference T120.417.17.041.00 at 45.5 mm.
The Product Title uses 45 mm for a cleaner commercial presentation, while the detailed technical specification retains the exact manufacturer’s measurement.
How thick is the watch?
The stainless-steel case measures approximately 12.82 mm thick.
This gives the Tissot Seastar Chronograph 45mm Blue Dial the robust profile expected from a large sports chronograph while keeping the case reasonably controlled considering its 300 m water resistance.
How much does the watch weigh?
This rubber-strap version weighs approximately 109 g.
That makes it significantly lighter than the comparable stainless-steel bracelet Seastar chronographs, despite retaining the same substantial 45.5 mm case dimensions.
What colour is the dial?
The dial is officially specified as Blue Gradient.
The tonal transition gives the dial greater depth and creates a more dynamic appearance as surrounding light changes.
What chronograph functions does it have?
The Tissot Seastar Chronograph 45mm Blue Dial includes:
- 30-minute counter
- 1/10-second counter
- Central 60-second chronograph hand
- ADD timing function
- SPLIT timing function
These features make it considerably more versatile than a conventional three-hand sports watch.
What does the ADD function do?
The ADD function allows consecutive measured intervals to be accumulated into one total elapsed time.
This can be useful for timing activities consisting of several separate stages.
What does the SPLIT function do?
SPLIT timing allows an intermediate result to be displayed while the chronograph continues measuring the overall event.
It can be useful for laps, stages and comparative timing.
Does the watch have a date?
Yes. The Swiss Quartz Chronograph movement includes a practical date function.
What battery does the watch use?
Reference T120.417.17.041.00 uses a Renata 394 battery at 1.55 V.
What is the EOL indicator?
EOL stands for End of Life.
The function provides an indication when the battery is approaching replacement time, helping prevent an unexpected loss of operation.
Does the Tissot Seastar have sapphire crystal?
Yes. The Tissot Seastar Chronograph 45mm Blue Dial features scratch-resistant sapphire crystal.
Tissot also applies double-sided antireflective coating, helping reduce reflections and improve dial visibility under different lighting conditions.
Why is the antireflective coating important on a chronograph?
A chronograph dial contains several displays and timing indications.
Reducing reflections helps the wearer distinguish the primary hands, subdials and chronograph indications more quickly.
Does the watch have Super-LumiNova®?
Yes. Tissot uses Super-LumiNova® to improve visibility in reduced-light environments.
This reinforces the practical aquatic character of the Seastar collection.
Is the bezel ceramic?
No. This exact reference uses an aluminium bezel ring.
The dark bezel contrasts with the blue gradient dial and contributes to the traditional diving-watch aesthetic.
Does the bezel rotate?
Yes. The Tissot Seastar Chronograph 45mm Blue Dial features an anti-clockwise rotating bezel.
The unidirectional design follows the traditional safety principle associated with diving watches.
Does the watch have a screw-down crown?
Yes. The crown is screw-down.
It should always be correctly secured before exposing the watch to water.
Are the chronograph pushers screw-down?
Yes. Tissot equips this reference with screw-down chronograph push-buttons, supporting its substantial water-resistant architecture.
Is the caseback screw-down?
Yes. The caseback also uses screw-down construction.
Together with the crown and pushers, it contributes to the integrity of the watch under water pressure.
Is the Tissot Seastar Chronograph water resistant?
Yes. The Tissot Seastar Chronograph 45mm Blue Dial is water resistant to 30 bar / 300 metres / 1000 feet.
This substantial rating is one of the defining technical characteristics of the Seastar 1000 collection.
Why is it called Seastar 1000?
The 1000 designation corresponds to approximately 1,000 feet of water resistance, equivalent to about 300 metres.
Is it suitable for swimming?
Its substantial water resistance and screw-down construction make the watch highly capable around water.
Always make sure the crown and pushers are completely secured before entering the water.
Can I operate the chronograph underwater?
The safest approach is not to operate chronograph pushers underwater unless Tissot specifically permits it under the applicable conditions.
For underwater elapsed-time measurement, use the dedicated rotating bezel.
Is the watch suitable for diving?
The model combines 300 m water resistance, screw-down architecture and an anti-clockwise rotating bezel, giving it serious diving-oriented specifications.
Actual diving use should always follow Tissot’s official instructions and appropriate diving practices.
What material is the strap?
The Tissot Seastar Chronograph 45mm Blue Dial is fitted with a black HNBR-NBR rubber strap.
Rubber is especially appropriate for an aquatic sports watch because it handles moisture naturally and contributes to a lighter overall configuration.
What type of buckle does it use?
The rubber strap is secured with a standard buckle, providing straightforward and reliable fastening.
Is the rubber strap better than the stainless-steel bracelet?
Neither is universally better; they provide different experiences.
The rubber strap makes this reference lighter, more overtly sporty and particularly suitable around water. A stainless-steel bracelet gives a more substantial and versatile metallic appearance.
For someone prioritising comfort and aquatic use, the rubber configuration is especially attractive.
Is 45.5mm suitable for everyday wear?
For someone who enjoys large sports watches, yes.
The Tissot Seastar Chronograph 45mm Blue Dial has deliberately substantial proportions, but its approximately 109 g weight makes this rubber-strap version noticeably easier to wear than heavier full-steel alternatives.
Is the blue gradient dial versatile?
Yes. Blue is one of the most versatile sports-watch colours, and the darker gradient treatment makes this reference particularly easy to combine.
The black rubber strap and dark bezel also prevent the dial from appearing overly bright.
Is this watch automatic?
No. Reference T120.417.17.041.00 uses a Swiss Quartz Chronograph movement rather than a mechanical automatic movement.
Does it need winding?
No. The quartz movement does not require manual winding or wrist motion to maintain a mechanical power reserve.
Is quartz more accurate than an automatic chronograph?
Quartz movements generally offer greater everyday precision than mechanical chronographs while requiring less maintenance.
This makes the Tissot Seastar Chronograph 45mm Blue Dial especially practical for someone who regularly uses its timing functions.
Is the Tissot Seastar Chronograph 45mm Blue Dial a good gift?
Yes. Its blue gradient dial, substantial Swiss Made construction, chronograph functionality and 300 m water resistance make the Tissot Seastar Chronograph 45mm Blue Dial an exceptional gift for someone who appreciates bold sports watches.
It is particularly suitable for birthdays, anniversaries, graduations and important personal milestones.
Official Tissot Model Information
For the manufacturer’s official specifications for reference T120.417.17.041.00, use the exact Focus Keyword as the external-link anchor:
