Strap for Museum Collection N° 10 "The MD's Watch 1938"

The lug width of the Museum Collection 516.53.39.50.09.001 is 20mm. This is the specific standard for all chronographs in the Omega Museum Collection. To verify that your strap is compatible, measure the internal space between the two spring bars (the pins that support the strap): the result must be exactly 20mm.

For a dress chronograph in yellow gold like the 516.53.39.50.09.001, we recommend alligator in havana or cognac tones (to enhance the warmth of the gold), or black shell cordovan for a sober formal contrast. Alligator preserves dial readability without visually competing with the case. Your choice depends on use: if you wear it mainly in formal settings, dark alligator is unbeatable; if you desire versatility, vegetable-tanned calf leather ages naturally alongside the patina of the gold.

The procedure is straightforward: gently lift the lugs (small metal levers on the sides of the case) using a dedicated tool (spring bar tool); this releases the spring bars that support the strap. Once you have removed the spring bars from the old strap, align the holes of the new 20mm strap with the pins and press until they click into position. Verify that the strap is securely fastened before wearing the watch. If you are unfamiliar with the procedure, contacting an Omega service center or a professional atelier is the safest choice.

Yes, absolutely. The Museum Collection 516.53.39.50.09.001 has standard 20mm lugs, so it is compatible with any strap of that width, whether OEM Omega or aftermarket. Many collectors prefer artisanal alligator or shell cordovan straps to vary the style of the watch: a Museum Collection can be worn with at least 5-6 different straps throughout the year, creating completely different aesthetic effects.

The durability of a leather strap depends on the material and usage. Alligator and shell cordovan, if made with vegetable tanning, typically last 3-5 years with daily wear; calf leather has a wider range (2-4 years) because the skin is more delicate. Yellow gold, being a soft metal, does not wear out the strap; the main issue is wear from bending at the lugs and natural aging of the leather. A quality strap with a good deployant clasp can last even longer. Atelier Casati Milano offers an 18-month warranty on custom-made straps, including minor repairs.