Strap for Seamaster Master Co-Axial 39.5 Olympic Games Gold Yellow Gold / Enamel / Alligator

The lug width of the Seamaster 522.53.40.20.04.001 is 20 millimeters. This dimension represents the space between the two lugs (cavities) in the case where the strap is inserted. It is a standard that allows broad compatibility with quality aftermarket straps.

For yellow gold, we recommend polished alligator with 4-6mm grain (cognac or dark brown), vegetable-tanned calf with hammered finish, or shell cordovan for those seeking color depth and natural patina. If the dial is blue, a dark blue vegetable-tanned strap creates delicate color harmony. For everyday versatility, FKM rubber with contrasting topstitching.

The Seamaster 522.53.40.20.04.001 uses case lug technology for strap insertion. To change it: support the case, gently remove the spring bars or connecting pins using a proper tool (spring bar tool). Insert the new strap by aligning the lugs, then reposition the bars. If preferred, entrust the task to a certified watchmaker to avoid the risk of scratching the gold case.

Yes, provided the strap is specifically made for 20mm lug width. Our handcrafted straps on milanostraps.it are designed for this dimension and maintain full compatibility with the original Omega lugs. You can choose from custom materials, colors and lengths without any structural adaptation.

A quality leather strap (alligator, calf, shell cordovan) with vegetable tanning has average durability of 5-8 years with daily use, depending on sun exposure, humidity and frequency of wear. Our warranty is 18 months on Casati Milano straps. With periodic maintenance (cleaning, conditioning with neutral wax), longevity increases significantly. FKM rubber lasts 10-15 years.