Strap for Constellation Master Chronometer 36 Stainless Steel / Yellow Gold / Champagne - Diamond / Bracelet

The lug width is 22mm. This specific dimension allows the strap to fit perfectly into the attachment points of the 36mm case. To verify the compatibility of an aftermarket strap, measure the internal width between the two vertical supports of the case using a digital caliper: it must be exactly 22mm to ensure a snug fit without play.

For the two-tone gold-steel of the 131.20.36.20.58.001, alligator in dark brown, burgundy or cognac tones is the classic solution, able to dialogue with the watch's formal aesthetic. Vegetable-tanned calf offers a patina that ages magnificently over time. For more casual daily wear, a grey or black FKM rubber strap maintains sophistication and practicality.

The Omega Constellation 131.20.36.20.58.001 uses straight lugs (not curved). Position the watch on a soft surface with the case facing upward. Identify the removable spring bar beneath the lugs and, using a dedicated tool (spring bar removal tool), apply gentle lateral pressure to free the spring bar from its housing. Remove the old strap, then insert the spring bar into the new 22mm strap and reposition it into the attachment points until you hear a click.

No, the specific 22mm lug width makes it compatible exclusively with Omega models (and other brands) that use the same attachment width. Many Constellation and SeaMaster models at 36mm adopt this measurement, but it is always advisable to verify technical specifications before purchasing. In the Milano Straps catalogue you will find certified 22mm straps ready to use.

Durability depends on usage and leather quality. A quality alligator or calf leather, worn daily and subjected to proper maintenance (occasional cleaning, protection from excessive moisture), maintains structural integrity between 3 and 5 years. A shell cordovan strap, due to its superior density, can last 7-8 years. Regular maintenance by a specialized atelier (such as Casati Milano) significantly extends durability, allowing targeted refurbishment without the need for complete replacement.