Strap for Divers Sixty-Five 36 Stainless Steel / Blue / NATO

The Oris Divers 65 01 733 7747 4055-07 5 17 28 features a lug width of precisely 17 millimetres. This dimension is consistent with vintage compact watch standards and was selected by Oris to maintain the authentic design philosophy of the 36mm case. To verify strap compatibility, measure the internal distance between the two attachment pins: it must be exactly 17mm.

The choice depends on intended use. For authentic vintage styling, we recommend a dark brown alligator with vegetable tanning, which amplifies the 1960s aesthetic narrative. For maximum durability and chromatic transformation over time, shell cordovan is supreme. A honey-brown vegetable-tanned calf offers the right balance between softness and resistance. For a sportier approach, navy blue or charcoal NATO enhances the instrumental character. Black rubber remains the most technical choice for humid environments or aquatic pursuits.

Changing the strap requires two tools: a standard spring bar tool and a small quantity of lightweight oil (such as gun oil) to facilitate pin movement. Position the watch strap-side down, insert the tool into the spring slot of the first lug, apply gentle pressure to release tension, and slide the pin outward. Repeat for the other lug. When installing the new strap, ensure the pins align perfectly and that the spring is fully loaded. Avoid forcing: if you encounter resistance, check alignment carefully.

Absolutely. Any strap with a 17mm lug width is compatible with the Divers 65. Quality aftermarket straps represent an opportunity to personalise the watch according to your aesthetic preferences without functional compromise. We recommend choosing manufacturers who guarantee precise width tolerances and use appropriate materials (vegetable-tanned leather, butyl rubber, technical textiles) rather than low-grade synthetics. A well-constructed strap substantially enhances comfort and aesthetic legibility.

A quality vegetable-tanned leather strap, with daily use, provides durability of 12–24 months before replacement, with variability based on perspiration exposure, humidity, and frequency of water contact. Shell cordovan, owing to its superior fibre density, can last 3–4 years even with intensive wear. Butyl rubber has an even longer service life (5–7 years) if stored correctly, although it tends to absorb stress concentrations under extreme loading. To extend longevity, we recommend periodic maintenance: monthly cleaning with a soft brush, quarterly nourishment with leather-specific creams, and immediate drying after water exposure.