Strap for Divers Sixty-Five 40 Social Club Edition / Shanghai

The lug width of the Oris Divers 65 01 733 7707 4051 OSC-SHA-Set is 20mm. This dimension is critical for strap compatibility and reflects the proportional relationship between the lugs on the 40mm case. Verify the measurement with a digital calliper positioned between the two attachment pins beneath the case.

The ideal strap depends on intended use: vegetable-tanned leather at 1.4–1.5mm full grain develops natural patina over time and is excellent for daily wear; black alligator offers formal elegance and durability; FKM rubber is mandatory for frequent aquatic environments as it resists marine salinity and does not absorb moisture; NATO cordura with rubber backing provides practicality and aesthetic versatility. Selection depends on primary use case.

Strap replacement requires extraction of the spring bars positioned beneath the case between the lugs. Use a dedicated spring bar tool to remove the original strap, then insert the bars into the new strap ensuring perfect alignment. Verify the strap is secure and the bars are fully seated in the lugs. If you lack the proper tool, consult a professional watchmaker to avoid case damage.

All straps with a 20mm lug width are compatible with the Divers 65. Milanostraps.it offers an extensive selection of artisanal straps in leather, alligator, shell cordovan, NATO and rubber in the 20mm format. Always verify that width is precisely 20mm—a 19mm strap will bind under tension, a 21mm strap will slide laterally compromising aesthetics and comfort. Customisable straps allow selection of colour, finish and buckle type (deployante, simple ardillon, sports clasp).

Leather strap durability depends on frequency of wear, water exposure and material quality. A vegetable-tanned leather at 1.4–1.5mm full grain thickness under normal conditions (worn 4–5 days weekly, protected from daily water exposure) lasts 18–36 months. Prolonged exposure to humidity, sea salt and UV accelerates wear. Premium tanned alligator reaches 3–4 years of service life. Durability increases with regular maintenance (gentle cleaning, conditioning with neutral oils) and weather protection. Rubber straps last 4–5 years maintaining flexibility even in saline environments.