Strap for Constellation Co-Axial 27 Brushed Stainless Steel / Red Gold / Diamond / MOP

The lug width of the Constellation 123.25.27.20.55.006 is 20 millimetres. This is the distance between the spring bars protruding from the case at 12 and 6 o'clock. Precise measurement with a digital caliper is essential to ensure strap compatibility, avoiding vertical play and guaranteeing a perfect fit to the lugs.

Alligator remains the most natural choice for this ladies' model: the medium-fine grain and dark colour enhance the mother-of-pearl dial and rose gold case. Shell cordovan represents the premium alternative for those seeking an evolved patina over time and longevity exceeding ten years. Vegetable tanning offers pronounced tactile texture and grain, ideal for those who appreciate visible character in the leather.

The strap is replaced using a spring bar tool to compress the elastic pins that hold it in position. Position the tool in the lateral groove of the spring and gently compress until the pin releases. Insert the new strap by aligning the upper hole first, then compress the lower pin until fully engaged. Verify that both pins are securely anchored before wearing the watch.

Any strap with a 20 millimetre lug width is compatible with this model. Available options include alligator, calf, shell cordovan, vegetable tanning, vulcanized rubber, and NATO fabrics. We recommend measuring the case lug width precisely before purchase to avoid incompatibility, and choosing materials that respect the sophisticated elegance of the piece.

Durability depends on the chosen material and usage. A quality calf leather strap has average durability of 3-5 years with daily wear. Shell cordovan, thanks to its dense fibrous structure, lasts over 10 years while maintaining structural and aesthetic integrity. Vegetable tanned leather shows visible wear in the first 2-3 years, but continues to function correctly for 8-10 years. Frequency of wear, exposure to sunlight and humidity, and regular maintenance significantly influence strap longevity.