Strap for Seastar 1000 Powermatic 80 43 Stainless Steel / Blue

The Tissot Seastar T120.407.11.041.03 features a lug width of 21mm, measured from the external wall of one lug to the external wall of the opposite lug. This dimension is not a common market standard, so precise measurement is essential before ordering an aftermarket strap.

We recommend crocodile or shell cordovan straps with vegetable tanning for formal/elegant sports wear, or vulcanised nitrile rubber if the watch is intended for frequent diving. NATO fabric straps offer styling versatility for casual environments.

Strap replacement requires a spring bar tool to extract the locking pins (spring bars) from the lugs. Position the tool in the dedicated groove, apply gentle upward pressure and slide the old strap along the pin; repeat from the opposite side. Insert the new strap by aligning the holes with the pins until they click into place.

Yes, a wide range of 21mm aftermarket straps in leather, rubber and textile are compatible with the T120.407.11.041.03. Artisanal brands such as milanostraps.it offer online customisation with bespoke finishes (deployante clasp, custom colours, tanning types).

A quality leather strap (crocodile or cordovan) typically lasts 3-5 years under normal usage conditions, developing characteristic patina over time. Frequent exposure to water or perspiration shortens durability; with regular maintenance (cleaning, conditioning treatment) longevity increases significantly.