Strap for Seamaster Diver 300M Automatic 36.25 Stainless Steel / Yellow Gold / White / Bracelet

The Omega Seamaster Diver 300M 2452.20.00 is equipped with lugs of 20mm width. This measurement, defined as lug width, is measured internally between the two lateral lugs of the case. It is essential to verify this dimension before purchasing a strap, as a lug width that is too narrow or too wide compromises the fit and durability of the strap itself.

For the Seamaster Diver 300M 2452.20.00, dark blue alligator, chocolate brown or black represents the most recommended classic choice. The natural texture of fine leather dialogues elegantly with the two-tone gold and steel case. For those preferring modern alternatives, calf leather in sand or pearl grey tones, or shell cordovan with vegetable tanning, offer aesthetic solidity and decade-long durability.

The strap change is performed using a dedicated tool (spring bar tool) to compress and remove the metal bars (spring bar) that anchor the strap to the case lugs. Position the new strap in the two lugs, realign the holes, and reinsert the bars until they click into place. If you lack experience, entrust the task to a professional watchmaker to avoid damage to the case.

Yes, online you will find 20mm compatible straps ready for shipment, customizable in size, initials and stitching thread. The Casati Milano atelier also offers bespoke artisanal straps, made with luxury leathers (alligator, cordovan, calf), with personal choice of material, WhatsApp updates and 18-month warranty.

A fine leather strap (alligator, shell cordovan with vegetable tanning, quality calf) has an average lifespan of 3-5 years with daily use, extendable to 7-10 years with regular maintenance and rotation with other straps. Shell cordovan, thanks to the natural density of the material, can exceed 10 years of useful life. Wear depends on climate, frequency of use and care: avoid direct exposure to sun and water to extend longevity.