Strap for Divers Sixty-Five 40 Social Club Edition / Basel

The lug width is 20 millimetres. This measurement refers to the internal diameter of the case lugs, where the strap passants engage. To measure precisely, use a digital calliper positioned on the inner lug, verifying the distance between the two passants. Even minor variations can compromise strap fit.

The ideal strap depends on intended use: for aquatic or sporting environments, select robust NATO or vulcanised rubber. For elegant wear, choose alligator with vegetable tanning or shell cordovan, both of which develop patina over time. Cognac brown calf leather offers balance between elegance and functionality. Compatible width is exclusively 20 millimetres.

To change the strap, you require a spring bar tool (specific instrument for pin extraction). Position the flat end of the tool beneath the spring bar (small metal pin on the inner lug side), apply gentle pressure to release the mechanism, and the strap will disengage. Repeat on the opposite side. When installing your new 20mm strap, ensure the passants enter the lugs perpendicularly.

Yes, provided the strap is certified for the 20-millimetre lug width. Milanostraps offers a verified collection of compatible straps, crafted by Italian artisans from premium materials (alligator, calf, shell cordovan, NATO). Compatibility guarantees precision in passant alignment and zero movement between case and strap.

A quality artisanal leather strap (alligator, calf, shell cordovan) typically lasts 3-5 years with daily wear in dry environments. Longevity depends on humidity exposure, heat, and perspiration. A strap subjected to frequent aquatic use or alternating indoor/outdoor climates ages more rapidly. Vulcanised rubber, conversely, maintains elasticity and resistance for 5-8 years, making it ideal for prolonged marine environments.