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

The lug width is 20 millimetres. This measurement represents the distance between the mounting lugs on the case and determines compatibility with aftermarket straps. Always verify this measurement with a calliper before purchasing a replacement strap.

For aesthetic versatility, we recommend shell cordovan or alligator leather; for frequent diving, NATO or FKM rubber. Shell cordovan develops a deep patina with age. Rubber is the technical choice for regular submersion use, offering durability and zero maintenance.

You will need a spring bar tool (fork-shaped implement). Insert the tip into the lug slot, compress the internal spring slightly to release the pin, and remove the old strap. Repeat on the other side. Align the new strap and press until the spring bar clicks into position. Never force the operation.

Yes, provided the lug width is exactly 20mm. Straps from specialised manufacturers (Italian, Swiss, German) offer construction quality equal to or exceeding original equipment. Always verify that any strap intended for diving has been tested for water resistance.

A quality leather strap, with minimal maintenance (occasional cleaning, drying after saltwater contact), lasts 3–5 years. Shell cordovan and alligator last longer due to superior moisture resistance. Expose leather straps to prolonged immersion only exceptionally.