Strap for Divers Sixty-Five 40 Stainless Steel / Blue / Bracelet

The lug width of the Oris Divers 65 is 20 millimetres. This specific dimension is determined by the geometry of the 40mm case and the positioning of the lateral lugs. When replacing the strap, it is essential to measure the distance between the inner shoulders of the lugs: it must correspond precisely to 20mm to ensure correct alignment without play or lateral shifts.

For the Divers 65, we recommend three directions depending on use: alligator or vegetable-tanned calf leather for elegant daily wear, which develops natural patina; cotton NATO or reinforced rubber for aquatic situations or humid climates, maintaining the model's historical military authenticity. Shell cordovan represents a premium option if you desire a strap that ages nobly over time.

The Divers 65 uses a standard spring-bar system with push-through pins. For replacement: use a dedicated tool or thin screwdriver to depress the lateral spring, extract the pin, and remove the old strap. When installing the new 20mm strap, ensure the shoulders align perfectly with the brushed case, leaving approximately 1-1.5mm clearance per side. Always verify that the strap does not cover the case shoulder.

Yes, provided the strap is specifically dimensioned at 20mm lug width. Many artisanal manufacturers and established brands offer interchangeable straps of this measurement. Ensure the selected strap is the correct length (typically 110mm from one lug, 70mm from the other) and that both extremities are properly lined or finished to prevent damage to the case pins.

A quality vegetable-tanned leather strap, if maintained properly, lasts 3–5 years of regular daily use. Durability depends on climate, humidity, frequency of water contact, and care: protect the strap from prolonged direct sunlight, avoid intensive wetting before complete drying, and occasionally apply natural conditioner to significantly prolong useful life. A technical rubber or cotton NATO strap demonstrates greater moisture resistance but lesser aesthetic longevity, with 2–4 years before replacement is warranted for visual wear.