Strap for Seamaster Diver 300M Automatic 44 Racing Chronometer Stainless Steel / Black / America's Cup

The lug width of the 2569.50.00 is 20mm. This measurement refers to the distance between the suspension pins (case lugs). It is important to verify this dimension before purchasing an aftermarket strap to ensure a perfect fit.

For the 2569.50.00 we recommend vegetable-tanned alligator for sophisticated elegance, vegetable-tanned calf for evolving patina over time, natural rubber or vulcanized rubber for actual water use and diving, and robust canvas NATO for tactical versatility. The choice depends on the context of use and aesthetic preferences.

Strap change on the 2569.50.00 is a simple operation: simply gently extract the suspension pins (which connect the strap to the case lugs) using a dedicated tool or a thin screwdriver. No watchmaker intervention is necessary. The new 20mm strap fits easily into the same holes.

Yes, there are many aftermarket straps compatible with 20mm lug width. Milano Straps offers a complete collection of artisanal leather, rubber and fabric straps, customizable in sizes, initials and stitching colors. The Casati Milano atelier also creates custom bespoke straps with personal choice of leathers.

The lifespan of an artisanal leather strap depends on the tanning method and usage. A high-quality vegetable-tanned alligator or calf strap, with moderate use and proper maintenance, lasts an average of 3-5 years. Frequent exposure to saltwater shortens the lifespan; for this use natural rubber is recommended. Milano Straps guarantees 18 months on straps created by the Casati Milano atelier.