Strap for Constellation Quartz 27 Polished Stainless Steel / Yellow Gold / Diamond / Champagne Supernova

The lug width of the Constellation 123.25.27.60.58.002 is 20 millimetres. This width is specific to Constellation models of this generation, proportioned to the 27 millimetre case diameter. Always verify by measuring the perpendicular distance between the two lugs on the case where the strap attaches.

Alligator represents the ideal choice for this Constellation: the straight grain reflects the linear geometry of the diamond-set bezel, the natural patina evolves over time, and the colour integrates perfectly with the steel and yellow gold case. Vegetable-tanned calf is a valid alternative if you desire a material with more visible ageing and more articulated texture.

Strap changing requires specific tools: a spring bar tool to release the lug springs. Position the watch in a vise with rubber protection, insert the tool into the groove under the lug, release the spring with controlled movement, remove the old strap and attach the new one, ensuring the spring clicks correctly into the lug holes.

Yes, provided they have a 20 millimetre lug width. Any strap manufactured for this width installs correctly. Consult the Casati Milano atelier to verify aesthetic compatibility with the steel and gold case, as not all materials and colours work equally well with this geometry.

Durability depends on intensity of use and material: alligator lasts 5-8 years in daily wear, developing precious natural patina. Vegetable-tanned calf has a cycle of 3-5 years before requiring replacement. Shell cordovan exceeds 10 years. The Casati Milano atelier guarantees 18 months, with the possibility of leather restoration beyond this period.