- Is the silicon hairspring worth it?
- Yes, if you care about magnetic resistance. Silicon is immune to magnetism and less affected by temperature, which keeps timekeeping steadier around phones, laptops and magnets. Most divers at this level use a standard alloy hairspring.
- How does it compare with the standard Seastar 1000 Powermatic 80?
- The main difference is the silicon balance spring, which adds magnetic and temperature resistance. Case, dial, water resistance and the 80-hour movement are otherwise closely related.
- Can I swim and dive with it?
- Yes. It is rated to 300 m with a screw-down crown, so swimming, snorkeling and recreational diving are fine. Rinse it in fresh water after salt water use.
- How long does it run without winding?
- About 80 hours on a full wind, so it keeps running through a weekend off the wrist. Wear it daily and your wrist motion keeps it wound.
- Is the strap easy to change?
- The watch uses standard lugs, so most 21 mm straps fit. Swapping to a steel bracelet or rubber strap is straightforward with a spring bar tool.
- Does it fit smaller wrists?
- It is a large dive watch with a thick case, so it wears big. Try it on if your wrist is under about 7 inches, or consider a smaller diver.
- Where is the Tissot Seastar 1000 Powermatic 80 Silicium (T120.407.17.041.01) cheapest?
- At Watchmaxx, for $746.00, as of our latest check.