Strap for Speedmaster Professional Moonwatch Apollo 15 35th Anniversary

The lug width of the 3366.51.00 is 20 millimeters. This is the inner distance between the extremities of the lower lugs. It is essential to measure it precisely using a digital caliper to avoid errors: a 18mm or 22mm strap will not fit correctly. Consult official Omega specifications if in doubt.

Alligator is the ideal choice for the two-tone: the natural texture of the scales dialogues perfectly with the chromatic contrast of the case. Dark brown, bordeaux, or dark blue are shades that amplify sophistication. Shell cordovan offers superior solidity and luster, while vegetable-tanned anilina calfskin allows a natural patina to develop over time. Rubber is ideal if you prefer to maintain the sporty character of the watch.

To change the strap you need: a strap removal tool (small tool with a flat lever), caution and workspace. Position the watch on a soft surface (cloth), locate the spring bar that passes through the lugs, and use the strap removal tool to gently push the bar from one side until it comes out. Repeat from the other side. Insert the new spring bar into the new strap, then reinsert it into the lugs and verify that it is secure on both sides.

Yes, there are high-quality aftermarket straps specifically designed for the 20mm size. Leading artisanal strap manufacturers offer options in alligator, calfskin, shell cordovan, and rubber. Milano Straps offers a collection of 20mm straps ready to ship and customizable, as well as the possibility of custom commissions at the Casati Milano atelier for specific needs.

A high-quality leather strap, such as alligator or shell cordovan, generally lasts 3-5 years with regular use, provided it is properly cared for. Durability depends on usage, ambient humidity, and maintenance: avoid prolonged water contact, do not expose to direct heat sources, and occasionally apply a protective balm. Signs of wear are: cracks along the edges, permanent creases, and thinning of the fiber. A rubber strap lasts longer (5-8 years), but may become less elastic over time.