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

The lug width of this model is precisely 20mm. This measurement is verified by positioning a digital calliper between the two horizontal pins that support the strap. Any compatible aftermarket strap must respect this dimension with a maximum tolerance of ±0.2mm to avoid lateral movement or friction with the case.

The ideal strap depends on the intended use. For authentic diving, a vulcanised FKM rubber maintains grip properties even when wet. For elegant everyday wear, an alligator with vegetable tanning and fine grain balances aesthetics and function. A polyamide NATO offers versatility and cost-effectiveness, allowing you to double the strap during water activities. Your choice should consider the wearing context, not fashion alone.

Use a spring bar tool (an instrument for removing spring bar springs). Place the watch on a stable, flat surface. Insert the flat tip of the tool into the small lateral hole of the spring bar, pushing inward until the spring end snaps out. Repeat for the other side. The strap will separate. To install the new one, reinsert the spring bars into the eyelet holes of the new strap and lock them into the case attachments, verifying that the pins are centred.

Yes, provided the strap meets exactly 20mm and the spring bar dimensions are standard (1.8mm diameter). Quality certified artisanal straps maintain Swiss tolerances: always verify with the manufacturer that the attachments are compatible with your Divers 65 case before purchase. A poorly sized strap can cause damage to the case eyelet holes.

A quality vegetable-tanned leather strap can last 3-5 years of intensive daily wear, up to 7-8 years with moderate use and regular maintenance. Lifespan depends on exposure to moisture, perspiration, UV rays and frequency of wear. To extend the strap's life, rinse in fresh water after sea immersions, allow to dry naturally away from heat sources, and occasionally apply beeswax or leather balm to maintain the fibre's softness and hydration.