Strap for Museum Collection N° 9 Olympic Official Timekeeper Co-Axial Chronograph

The lug width of this model is exactly 18 millimeters. This width is standardized by Omega for all Museum Collection 38 millimeter models and corresponds to the original geometry of the lugs. Check the depth of the internal space (at least 2 mm) to ensure that the strap thickness is compatible with the spring bar bracket.

For a white gold watch with a grey-aviator dial, we recommend an intense black alligator leather with vegetable tanning or medium brown veal leather. Alligator amplifies formality and develops natural patina over time; veal offers versatility between formal and casual contexts. Avoid NATO straps if you wish to maintain semantic coherence with the value and conservative philosophy of the model.

The 522.53.38.50.04.001 uses straight lugs of 18 mm. To remove the old strap, use a specific spring bar tool by inserting the tip into the lateral notch of the spring. Gently remove the spring, extract the strap, then insert the new strap and reinsert the spring until it clicks. Make sure both ends are firmly secured before wearing the watch.

Any strap with an 18 mm lug width is physically compatible with this model. MilanoStraps offers a selection of artisanal 18 mm straps in alligator, veal and other materials, customizable in length and finishes. Compatibility is guaranteed; the choice depends on the aesthetics and enjoyment you desire.

A high-quality alligator or veal leather strap, if not exposed to continuous direct water or very humid environments, maintains structural integrity between 3 and 5 years of regular use. Leather develops patina, slight aging creases and tone changes; this is biologically normal. The Casati Milano warranty of 18 months covers construction defects and materials; aesthetic wear is considered enobiling (virtuous aging).