Strap for Divers Sixty-Five 42 Stainless Steel / Silver / Bracelet

The Oris Divers Sixty-Five 01 733 7720 4051-07 8 21 18 features a lug width of 21mm. This measurement refers to the internal distance between the pins of the two side lugs on the case. Precise measurement is essential for ensuring complete strap compatibility: using a digital calliper positioned inside the lugs reveals the exact measurement, excluding the protrusion of the pins themselves.

For actual diving use, vulcanised rubber is the most appropriate choice. This material is completely waterproof, resistant to UV rays and marine corrosive agents, with tactile ridges that facilitate grip even with wet gloves. A high-quality rubber strap maintains elasticity and flexibility over time, adapting perfectly to temperature variations in water without becoming rigid.

Strap replacement is performed by removing the side pins of the case using a dedicated tool (spring bar tool). Position the flat-head or pointed screwdriver lever under the small internal spring of the pin, applying gentle pressure until it loosens. Once the pin is freed from the first attachment, remove the old strap and insert the new one, ensuring the pins snap securely into position. Verify tension by pulling the strap: it must not oscillate laterally.

Any strap with a 21mm lug width is compatible with the Divers 65. On milanostraps.it you will find a curated collection of straps in alligator, calf leather, shell cordovan, NATO and rubber, all specifically calibrated for this measurement. Ensure that the product description clearly specifies "21mm" and that the seller guarantees compatibility with standard Oris pins.

The durability of a leather strap depends on frequency of use, moisture exposure and the specific material. A high-quality alligator strap with vegetable tanning lasts an average of 18-24 months with daily wear; dyed calf can reach 12-18 months. Prolonged exposure to fresh or salt water significantly reduces useful life. Proper maintenance—rapid drying, occasional conditioning and rotation with other straps—substantially extends durability.