Strap for Divers Sixty-Five 40 Stainless Steel / Black / Topper Edition

The lug width is 20 millimetres. This measurement is specific to this model and ensures correct visual proportions between the 40-millimetre tonneau case and the strap. The lug width is verified with a digital calliper positioned at the widest point of the attachment pin.

Shell cordovan with vegetable tanning is ideal for those seeking historical authenticity and natural patina development. Full-grain calf leather offers colour uniformity. For water use, FKM rubber or vulcanised silicone straps ensure zero water absorption. NATO straps in ballistic canvas maintain the model's sporting character.

Strap change requires pin extraction using a precision horologer's tool. Position the watch on a stable support, apply light and progressive pressure to the pin's internal spring until it emerges from the opposite side. Once extracted, slide off the old strap and insert the new one, then reinstate the pins by perfectly aligning the lugs.

Yes, all straps catalogued for the 20mm lug width are fully compatible with the Oris Divers 65 01 733 7707 4064-07 8 20 18 / TOPPER. Milano Straps manufactures leather, alligator, cotton NATO and rubber straps in-house, each verified before dispatch.

Longevity depends on frequency of use and water exposure. A vegetable-tanned leather strap subjected to regular diving develops patina within 6–8 months. If constantly exposed to salt water, its lifespan reduces to 12–18 months before replacement becomes necessary. For prolonged water use, FKM rubber straps maintain structural integrity for 2–3 years.