Strap for Seamaster Diver 300M Quartz 36.25 Stainless Steel / Yellow Gold / Blue / Bracelet

The lug width of the Seamaster Diver 300M 2462.80.00 is 20 millimetres. This measurement is taken between the axes of the lug pins (lug width), not on the external surface of the case. A correct measurement ensures precise compatibility with any aftermarket strap.

For a two-tone case we recommend natural alligator for formal elegance, vegetable-tanned calf for instrumental character and patina development over time, or rubber/NATO for sports practicality. Shell cordovan is ideal if you desire natural lustre that complements yellow gold. The choice depends on primary use and your aesthetic sensitivity towards visible leather ageing.

The change requires a spring bar tool: position the watch with the lug facing upward, insert the spring bar tool into the lateral groove of the pin, apply gentle downward pressure until the spring releases, then extract the pin. Repeat on the opposite lug. Proceed in reverse to install the new strap, ensuring the pin is fully inserted on both sides.

Yes, perfectly. A bespoke strap made with a 20mm lug width ensures constructive compatibility. We recommend verifying that the leather thickness allows tight fit without lateral play at the case shoulders. Artisanal ateliers like Casati Milano create custom pieces taking into account the specific geometry of your watch.

Durability depends on material and use: alligator and shell cordovan last 5-7 years under normal conditions; vegetable-tanned calf visibly ages around 4-5 years of daily wear, a characteristic appreciated by those seeking conscious patina. Repeated exposure to salt water accelerates ageing. We recommend seasonal maintenance and rotation with technical straps (rubber, NATO) during swimming or diving activities.