Strap for Seastar 1000 Powermatic 80 43 Stainless Steel / Green Gradient / Bracelet

The lug width of the T120.407.11.091.01 is 21mm. This dimension corresponds exactly to the space between the lugs on the case and determines the width of any compatible strap. Verifying this measurement with a calliper before purchasing an aftermarket strap is essential to ensure a perfect fit.

The Seastar 43mm pairs best with a high-quality alligator strap, which creates visual contrast with the brushed steel case, or a robust NATO strap for those intending to use the watch in a marine environment. Vegetable-tanned calf leather is ideal for those seeking a natural patina that develops over time.

Strap replacement involves removing the two spring bars from the lugs: position the appropriate tool or a fine needle under the bar spring, apply inward pressure, then extract the bar. Align the new strap's holes with the lug position, reinsert the bars until they lock in place. A simple operation requiring no professional tools for standard straps.

Yes, all straps with a 21mm lug width are compatible. However, exact verification of the width is essential: even a minor error compromises the fit. Artisanal straps from Casati Milano guarantee certified compatibility and custom manufacturing tailored to your wrist.

A quality leather strap (alligator or vegetable-tanned calf) typically lasts 3–5 years of daily wear, provided regular maintenance and avoiding prolonged exposure to fresh water. Premium alligator lasts longer due to the leather's structure. Technical rubber straps can last 5–7 years.