Strap for Seamaster Diver 300M Automatic 36.25 Stainless Steel / Black / Rubber

The lug width is exactly 20mm. This specification is essential for selecting a compatible strap. Measure perpendicular to the two suspension pins, excluding the case lugs, to confirm the width before ordering.

It depends on usage. For elegance: brown or black alligator with contrasting stitching. For sports versatility: regenerated calf with vegetable tanning in cognac or sand tones. For water performance: dark grey or blue FKM rubber. All compatible with the 20mm lug width.

The caseback of the 2952.50.91 is screw-down, but strap replacement occurs at the lugs. Using a springbar tool or small flat-head screwdriver, gently release the suspension pin, remove the worn strap, and insert the new one (20mm). The procedure takes 5 minutes and requires no technical skills.

No. A smaller lug width will not insert into the pins, while a larger one creates dangerous play between strap and case, compromising aesthetics and security. Strictly respect the 20mm specification for correct compatibility and proportions.

An alligator or vegetable-tanned calf strap lasts 24-36 months of daily wear, provided it is not exposed to constant moisture. FKM rubber is indefinitely durable but degrades over time with UV rays. Natural patina on leather is part of the charm: minor cracking does not indicate failure, but acquired character.