Tissot Seastar Automatic Watch - Blue - 43mm
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Product Information
Full details
The Tissot Seastar Automatic 43mm is a high-performance diving timepiece engineered for both serious underwater explorers and watch enthusiasts who value Swiss precision. Its standout benefit is the reliable Powermatic 80 movement, which provides an impressive 80-hour power reserve, ensuring the watch stays running even after a weekend off the wrist. While its 43mm size provides excellent legibility and a bold aesthetic, the larger case profile may feel substantial on individuals with smaller wrist sizes.
All features
| Dial Size | 43mm |
|---|---|
| Colour | Blue |
| Series | Seastar |
| Model Part Number | T1204073704100 |
| Brand | Tissot |
Extended Product Information
FAQs
Is this watch suitable for professional diving?
Yes, with a 30 bar (300 meters) water resistance rating and a uni-directional bezel, it meets the requirements for professional and recreational diving.
How often does it need servicing?
Tissot generally recommends a maintenance service every 3 to 5 years to ensure the movement remains accurate and water-resistant.
Can I replace the textile strap with a bracelet?
Yes, the Tissot Seastar line allows for strap changes, though you should ensure the replacement strap matches the lug width of the 43mm model.
Does the watch require batteries?
No, this is a mechanical automatic watch. It is powered by the natural motion of your wrist or manual winding.
What is the function of the divers' extension?
The extension allows the strap to be lengthened easily so the watch can be worn comfortably over a wetsuit.
Is the sapphire crystal prone to scratching?
Sapphire crystal is highly scratch-resistant, though it can be damaged by extremely hard impacts or contact with materials harder than sapphire, such as diamond-based tools.
Troubleshooting
Watch stopped running after the weekend
The power reserve is 80 hours. If it has been stationary for longer, manually wind the crown 20-30 times in the first position to restart the movement.
Difficulty rotating the bezel
Check for salt or debris trapped under the bezel rim. Rinse thoroughly with fresh water while gently rotating the bezel to dislodge particles.
Condensation under the crystal
This indicates a compromised seal. Pull the crown out, keep the watch in a dry environment, and take it to an authorized Tissot service center immediately.
Pros and Cons
Pros
- Impressive 80-hour power reserve
- Excellent underwater visibility with Super-LumiNova
- Robust 300-meter water resistance
- Sophisticated blue-black gradient dial aesthetic
- Reliable Swiss automatic engineering
Cons
- 43mm case size may be large for some wrists
- Textile strap may require more drying time than metal or rubber
- Fixed date window position at 6 o'clock may not appeal to all preferences
Setup, Compatibility & Care
To set the time, unscrew the crown by turning it counter-clockwise until it pops out, then pull it to the second position to adjust the hour and minute hands. Push the crown back in and screw it down firmly to maintain the water-resistant seal. For the date, pull the crown to the first position. When cleaning, rinse the watch with fresh water after exposure to saltwater to prevent salt crystallization on the bezel or buckle. Regularly inspect the strap for signs of wear and ensure the crown is fully screwed down before entering the water.