Strap for Constellation Quartz 35 Stainless Steel / Diamond / White Supernova / Alligator

The Omega Constellation 123.18.35.60.52.001 is fitted with a 20 millimeter lug width, measured externally between the two attachment points (the lugs). This measurement is standard for many watches from the 1960s and 1970s, but today requires conscious research. Always verify with a digital caliper before ordering an aftermarket strap.

Alligator represents the absolute choice of excellence, especially if treated with vegetable tanning to develop a natural patina over time. Shell cordovan offers structural solidity and a burnished surface that recalls formal elegance. Vegetable-tanned calf remains credible if of certified quality. Avoid NATO straps: their thickness undermines the aesthetic economy of the case.

Position the watch on a soft support with the lug facing upward. Use a spring bar tool to gently remove the elastic pin that holds the strap to the lugs. Insert the new strap ensuring the elastic pin snaps firmly on both sides. If you prefer a safer procedure, have the watch serviced at a certified service center.

Original Omega straps, if still available, cost 300-500 euros and guarantee certified geometric compatibility. Quality aftermarket straps, such as those from Milano Straps, cost 80-250 euros, offer superior choice of materials (alligator, cordovan, vegetable tanning) and often comparable construction quality. The main difference is in branding and availability: aftermarket straps allow customizations impossible with originals.

A quality natural leather strap, worn daily, lasts 3-5 years before requiring replacement, depending on UV exposure, humidity and care. Vegetable-tanned leathers tend to develop a patina more quickly (6-12 months), but do not lose functionality: the change is aesthetic and desirable. If worn occasionally, the same leather can last 7-10 years. The 18-month warranty offered by Casati Milano covers manufacturing defects, not natural wear.