Omega
Seamaster Diver 300M 2922.80.91— lug 20mm

The lug width of the 2922.80.91 is 20mm, which is the distance between the two pins that connect the strap to the case. This specification is essential for selecting compatible aftermarket straps. You can verify it by measuring the distance between the attachments on your case or by consulting official Omega documentation.

The choice depends on intended use and aesthetic preferences. For formal elegance, we recommend dark blue or black alligator. For daily versatility, vegetable-tanned calf leather that develops patina over time. For diving activities, high-density rubber in black or navy blue. All three materials are perfectly compatible with the 20mm lug width.

To change the strap, remove the original bracelet by extracting the lateral pins using a spring bar tool. Once the old strap is removed, insert the new one by aligning the lugs with the case pins and push until the locking click. If you prefer greater precision, entrust the task to a professional watchmaker or consult an expert at Milano Straps.

Yes, numerous quality aftermarket straps are compatible with the 20mm lug width. Milano Straps offers a curated collection of customizable leather straps (alligator, calf, shell cordovan) and rubber, all available for immediate shipment or custom-made at the Casati Milano atelier.

The lifespan of a leather strap varies depending on the material and wear. Alligator and shell cordovan typically resist for 3-5 years with regular use, while vegetable-tanned calf can last 2-4 years before requiring replacement. Exposure to water and humidity (typical of a diving watch) accelerates leather aging, making it advisable to have multiple straps in rotation.