Tissot Seastar 1000 Powermatic 80 T120.407.17.041.00

Blue fades toward black on the dial of this Seastar, while the rubber strap keeps the surrounding design dark and purposeful. Tissot reference T120.407.17.041.00 puts that combination in the larger 43mm Seastar 1000 case, with a ceramic bezel ring framing the face.

Why this watch stands out

The 316L stainless steel case measures 12.7mm thick. Its unidirectional bezel provides an elapsed-time scale, and the screw-down crown and caseback accompany a 300-meter water-resistance rating. A sapphire crystal protects the dial. Inside, the Swiss automatic Powermatic 80 offers up to 80 hours of power reserve from a full wind, with a date display and a see-through caseback. The black rubber strap fastens with a standard buckle. Made in Switzerland.

Our take

The 43mm diameter is the key fit consideration. Choose this reference if you want a larger mechanical Seastar with a blue gradient dial and a rubber strap rather than a steel bracelet. The strap gives the watch a different wearing character while preserving its substantial case.