Strap for Constellation Master Chronometer 39 Stainless Steel / Silver / Bracelet

The lug width of the Constellation 131.10.39.20.02.001 is 24 millimetres. This measurement represents the distance between the inner edges of the two lugs on the case and is the fundamental parameter for purchasing a compatible strap. If you have any doubts, measure with a calliper the distance between the two extremities of the case where the strap is anchored.

Vegetable-tanned alligator is the most coherent choice with the formal identity of the Constellation. For versatility, Epsom calf or NATO fabric straps maintain classic elegance. Avoid oversized straps or saturated colours that would compromise the constructive proportions of the watch. Milano Straps offers customisable 24mm straps in leather and material.

The Constellation uses a standard spring bar system. Obtain a specific removal tool or a small flat screwdriver. Insert the tool under the spring bar from the inside of the case, press gently downward to compress the spring, and extract the bar. Repeat on the other side. Insert the new strap by aligning the holes and engaging the springs until they click into place. If you prefer to avoid DIY, contact Casati Milano for a professional strap change.

Yes, any strap with 24mm lugs is compatible with the Constellation 131.10.39.20.02.001. Milano Straps manufactures high-quality aftermarket straps in the exact measurements, ensuring perfect fit without the need for mechanical adjustments. Compatibility is guaranteed: 24mm is the Omega standard for this case.

A quality leather strap, made with vegetable tanning or alligator, has an average lifespan of 3-5 years of daily use. Longevity depends on the frequency of use, exposure to moisture and UV rays, and maintenance care. A vegetable-tanned leather strap develops an aged patina that increases its aesthetic appeal over time. Milano Straps offers an 18-month warranty and recommends periodic maintenance with conditioning products specific to the type of leather.