Strap for Constellation Quartz 25.5 My Choice Stainless Steel / Champagne

The Omega Constellation 1571.61.00 has a lug width of 18mm. This is a proportional measurement relative to the case diameter (25.50mm) and represents the standard construction for Omega's women's models from the 1980s. Always measure between the internal points of the lugs, not visually, to ensure accuracy.

For the 1571.61.00, we recommend alligator with uniform grain or calf leather with vegetable tanning. Alligator respects the geometric rigor of the case and develops a natural patina that harmonizes with the oxidation of stainless steel. Calf offers a more uniform and discreet texture, perfect for those who prefer understated elegance. Avoid excessively thick straps, which would alter the case proportions.

The 1571.61.00 has integrated lugs in the case, not standard bracelet attachments. To replace the strap, gently remove the spring bars from the lugs with a dedicated tool (spring bar tool), slide out the old strap and insert the new one. If you are not experienced, rely on Casati Milano's atelier, which performs the change with guaranteed millimetric tolerances.

Yes, provided the strap is specifically manufactured for the 18mm lug width and constructed according to Swiss tolerance standards (±0.2mm). Generic or low-quality straps risk not centering correctly on the lugs, causing accelerated wear. We recommend ordering straps from Casati Milano, which guarantees geometric compatibility and builds custom pieces.

A quality leather strap (alligator or calf with vegetable tanning) typically lasts 3-5 years with daily use, depending on wearing frequency and humidity conditions. The keepers gradually wear through friction against the leather; the buckle undergoes mechanical stress. Casati Milano straps include an 18-month warranty and can be restored (keeper replacement, leather restoration) to extend service life.