Audemars Piguet
CODE 11.59 77410OR.OO.A623CR.01— lug 18mm

The lug width of the CODE 11.59 reference 77410OR.OO.A623CR.01 is 18mm. This measurement is taken internally between the two lugs at the strap attachment point and determines the correct width for any aftermarket or replacement strap.

For a 38mm rose gold case like the 77410OR.OO.A623CR.01, a polished Mississippiensis alligator strap in cognac, smoke gray, or burgundy tones is the most fitting choice given the formal character of the piece. Box-grain calf leather with natural patina is a refined and durable alternative. Both materials enhance the sculptural texture of the case without overwhelming it.

Strap replacement is accomplished using standard 18mm spring bars housed in the lugs. Using a specialized pointed tool — the lever tool — compress the spring bar laterally and extract the strap. It is recommended to perform this operation on a soft surface to avoid scratches on the rose gold case. If uncertain, a qualified watchmaker or the Casati Milano atelier can complete the change in a few minutes.

Yes. Any artisanal strap with 18mm lug width and standard spring bars is compatible with the 77410OR.OO.A623CR.01. On milanostraps.it you will find a selection of 18mm straps in leather, rubber, and nylon handcrafted and compatible with this reference. For optimal fit, it is advisable to verify the profile of the extremities as well, as the curved lugs of the CODE 11.59 benefit from tailored finishing.

The lifespan of a leather strap depends on the tanning method, leather quality, and daily use. A high-end alligator or calf strap, with regular but alternating use, maintains structural and aesthetic integrity for 2-4 years. Casati Milano straps are covered by an 18-month warranty against manufacturing defects. Storing the strap away from prolonged moisture and occasionally applying a neutral balm will significantly extend the life of the leather.