Strap for Divers Sixty-Five 36 Stainless Steel / Bronze / Black / Calf

The Oris Divers 65 (01 733 7747 4354-07 5 17 45) is fitted with 17mm lugs, a rare specification in contemporary watchmaking that faithfully preserves the historical proportions of the original 1965 dive instrument. The measurement refers to the interior distance between the lug shoulders on the case, excluding the protruding sections towards the mounting holes.

The choice depends on intended use. For historical and functional authenticity, vegetable-tanned leather in brown, taupe, or black naturally dialogues with the patinated bronze case. For actual diving, a NATO strap in Cordura nylon or a sports rubber option provides optimal grip and durability. Alligator leather represents the formal, structured alternative. All options must respect the 17mm lug width specification.

Strap removal involves extracting the lug screws from the case. Position the watch on a protective cradle, locate the two pins at the lug ends, and use a appropriately-sized watchmaker's screwdriver to turn them counterclockwise for extraction. Once removed, the old strap slides away; thread the new strap through and secure the pins by turning clockwise until tight. The operation takes 2-3 minutes for experienced users.

Yes, provided it strictly respects the 17mm lug width and the mounting holes match the historical pin spacing. Not all mainstream manufacturers produce 17mm straps; specialist brands in vintage and artisanal horology (such as those available through milanostraps.it) offer dedicated catalogues. Always verify compatibility with the reference number 01 733 7747 4354-07 5 17 45 before purchase.

Longevity depends on usage intensity and tanning quality. A vegetable-tanned leather subjected to regular daily wear lasts 3-5 years before replacement; with maintenance (occasional application of nourishing balm), it can endure up to 7 years. Leather ages visibly, developing patina and characteristic flexion marks—this is integral to its beauty. A NATO or sports rubber strap, being more abrasion-resistant, lasts 5-8 years with intensive use.