Tissot Seastar 43mm Mens Watch

Ref. T1204071104103

The Seastar 1000 is not a revival — Tissot drew the series from scratch for watersport use, building ISO 6425 compliance into the brief from the start. The ceramic bezel insert, screw-down crown behind its case guards, and the quick-release bracelet with its diver extension are working features, not styling decisions. The 43mm case runs to 12.7mm thick, which is compact for the depth rating and means it passes under a cuff without forcing the sleeve. At 49.6mm lug to lug it will be a confident fit on larger wrists and honest about its presence on smaller ones. The blue sunray dial shifts noticeably under changing light, the date sits quietly at six, and the Super-LumiNova on the plongeur hands and indexes holds long enough to be genuinely useful rather than decorative. The movement is the point where the Seastar separates from comparable divers at this end of the market. The Powermatic 80 runs at 21,600 vibrations per hour — lower than high-beat alternatives, which is part of how it achieves an 80-hour power reserve. That figure means a watch left off on Friday evening is still running Monday morning, which changes how you live with it.

Reference

T1204071104103

Brand

Tissot

Case size

43mm

Case thickness

12.7mm

Lug width

21mm

Case material

Stainless steel

Case shape

Round

Dial

Blue

Crystal

Sapphire

Movement

Automatic

Calibre

Powermatic 80

Functions

Date

Water resistance

300m

Bracelet / strap

Stainless steel bracelet

Strap colour

Silver

Clasp

Folding clasp

Lume

Super-LumiNova

Retailer

Goldsmiths