Strap for Constellation Co-Axial 31 Stainless Steel / Red Gold Claws / MOP

The Omega Constellation 123.20.31.20.55.003 has a lug width of 20mm. This measurement is exclusive to Constellation models of 31mm from this generation and is essential to ensure proper fit on the wrist and avoid irregular stress on the attachment pins.

Alligator in natural white or pearl grey tones creates the most refined aesthetic harmony with the mother-of-pearl dial, amplifying its luminosity. Alternatively, smokey pink nappa calf enhances the rose gold without competing with the dial. For daily wear, vegetable-tanned leather in cognac offers versatility and develops a natural patina over time.

Position a digital calliper parallel to the pins that pass through the lugs, measuring from shoulder to shoulder of the lug width without forcing. For the Constellation 123.20.31.20.55.003 the result must be exactly 20mm. Approximate measurements can lead to incompatible strap orders.

Any strap with a certified lug width of 20mm is compatible. The 20mm collection on milanostraps.it includes alligator, calf, shell cordovan and NATO — all suitable for this model. The buckle can be standard pin or deployant, according to personal preference.

A premium alligator strap lasts 10-15 years with daily wear and basic maintenance. Nappa calf resists 5-8 years. Vegetable-tanned leather reaches 8-12 years while developing a characteristic patina. Durability depends on frequency of wear, climatic conditions and periodic cleaning.