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

The lug width of the Seamaster Diver 300M reference 2252.50.00 is 20mm. This measurement represents the distance between the case attachment pins and determines compatibility with aftermarket straps. Measuring correctly means positioning a caliper between the pins protruding from the case, ensuring the strap sits flush without lateral play.

The choice depends on intended use. For maximum elegance we recommend cognac or black alligator, which transforms the diver into a versatile evening watch. For daily wear and development of natural patina, vegetable-tanned calf leather is ideal. For diving and water activities, rubber or NATO straps ensure safety and practicality. Shell cordovan represents the perfect compromise between luxury and durability.

The change requires a proper tool (spring bar tool) to remove the attachment pins from the case. Position the watch on a soft surface to avoid scratches. Insert the tool into the small hole present on the pin and apply gentle lateral pressure to release the pin from the case. Remove the old strap, align the new strap's pins and reinsert them into the case until they click securely. If you prefer, Casati Milano atelier offers this service with professional warranty.

All straps with a 20mm lug width are compatible with this Omega model. On milanostraps.it you will find a wide selection of artisanal 20mm straps crafted in alligator, calf, shell cordovan and technical materials. Each strap is customizable in length, color, texture and stitching thread to perfectly adapt to your wrist and personal style.

Durability depends on the quality of the leather and usage. A calf strap with vegetable tanning typically lasts 3-5 years with regular daily use. Alligator, thanks to its dense grain and natural structure, can last 5-7 years. Shell cordovan, being the densest leather available, reaches 7-10 years of useful life. Casati Milano straps are guaranteed for 18 months and designed to develop a fascinating patina over time. Durability increases significantly if the strap is kept dry and protected from constant exposure to moisture and chlorine.