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

The Oris Divers 65 ref. 01 733 7707 4354-07 8 20 18 features a lug width of 20mm. This width is standard for this 40mm case and is compatible with straps specifically designed for this dimension. The internal spacing between the lugs is approximately 15.8mm, a critical factor when evaluating the maximum strap thickness.

For the Divers 65 in bronze, straps in vintage alligator (tobacco or cognac tones), vegetable-tanned calf (dark brown or black), or heavyweight canvas NATO are recommended for intensive diving use. Alligator amplifies the aesthetic stratification of the bronze's natural patina, whilst NATO preserves the instrument-watch character. Shell cordovan is inadvisable: its inherent lustre would create excessive contrast with the bronze's matte patina texture.

Remove the strap by extracting the lug pins using a spring bar tool: position the tool tip in the lateral groove of the pin and lift slightly to release the internal spring, then withdraw the pin. Insert the new strap by aligning the passant with the lugs and repeat the reverse procedure, ensuring the pin clicks securely into position. Never force the pins: excessive pressure may damage the internal spring mechanism.

Yes, provided the strap is specifically dimensioned for 20mm lug width. MilanoStraps supplies handcrafted leather, NATO, and rubber straps designed for this width and compatible with the Divers 65. Verify that the passant thickness does not exceed 15.8mm, the maximum tolerance of the internal lug spacing. Poorly manufactured or incorrectly dimensioned straps may cause attachment rigidity or instability.

A quality handcrafted leather strap, such as those offered by MilanoStraps, will last 3–5 years with moderate daily wear. Longevity depends on exposure conditions: prolonged humidity, frequent saltwater contact, and direct sunlight exposure accelerate ageing. Vegetable tanning develops a natural patina that enhances aesthetics over time, but requires periodic maintenance (cleaning, conditioning) to preserve elasticity. For intensive diving use, consider NATO or FKM rubber straps for extended durability.