Strap for Divers Sixty-Five 40 Stainless Steel / Bronze / Brown / Bracelet

The lug width of the Oris Divers 65 01 733 7707 4356-07 8 20 17 is 20 millimetres. This measurement corresponds to the internal distance between the two horizontal pins that hold the strap. To verify accurately, use a digital calliper positioned between the lugs: the reading must indicate exactly 20mm. This width is a common standard that ensures compatibility with a broad range of quality artisanal straps.

The choice depends on intended use. For frequent diving activity, a NATO strap in cordura textile or an FKM rubber strap is recommended: both are waterproof and maintenance-free. For an aesthetic-functional balance, a vegetable-tanned calf in cognac-brown develops an attractive patina and will tolerate moderate humidity if treated with protective conditioners. Alligator with vegetable tanning represents an elegant intermediate solution. Shell cordovan is not advised for frequent immersion use, as saltwater permanently hardens the fibres.

The Divers 65 uses a standard system with removable pins (also called spring bars). Proceed as follows: 1) Place the watch on a soft surface (microfibre cloth); 2) Using a dedicated tool (spring bar tool), gently lever the pin from the side of the old strap, starting from the internal spring; 3) Remove the pin; 4) Repeat on the other side; 5) Insert the new strap, aligning the holes with the pins; 6) Press the pins into position until they click. If unfamiliar with this operation, consult an authorised service centre to avoid accidental damage.

Yes, any standard strap with a 20mm lug width is mechanically compatible. However, aesthetic and functional compatibility requires attention: verify that the strap does not have excessive thickness near the lugs (which could prevent case closure), that the finishing (matte, glossy, textured) harmonises with the bronze and steel of the Divers 65, and that the material suits the intended use (leather for elegance, NATO/rubber for water exposure). MilanoStraps provides carefully curated straps for the Divers 65, guaranteeing both mechanical and aesthetic compatibility.

The longevity of a leather strap depends on tanning method, thickness and usage. A quality vegetable-tanned calf, with moderate use and regular maintenance (water-resistant treatment every 6–12 months, thorough drying after water contact), lasts 3–5 years before replacement. Alligator with vegetable tanning, structurally more resilient, exceeds 5 years. Frequent exposure to saltwater (diving) reduces durability to 18–36 months even with protective treatments: in this case, rubber or NATO remain rational choices. Storing the strap in a dry environment when not worn significantly extends its useful life.