Strap for Constellation Quartz 27 Brushed Red Gold / Diamond Bezel / MOP Supernova

The lug width of the Constellation 123.55.27.60.55.001 is exactly 18mm. This is the distance between the two lugs where the strap or bracelet attaches. Verifying the correct measurement is essential to ensure compatibility with any aftermarket strap.

Alligator is the natural choice: its fine and regular grain enhances the nobility of rose gold without competing with the diamonds. Italian calf offers a patina that evolves over time, while shell cordovan adds vintage character with amber-bordeaux tones. Vegetable-tanned leather is ideal for those desiring natural patina development over time.

The replacement requires a dedicated tool (spring bar tool) to remove the pins that secure the strap to the lugs. Insert the tool into the small space beneath the lug, press gently to compress the pin, and the strap will detach. Proceed in reverse for installation. If you are not experienced, the Casati Milano atelier can perform the work by appointment.

Yes, provided the lug width is exactly 18mm. It is essential to choose a superior quality strap (alligator, calf, shell cordovan with appropriate tanning) to avoid compromising the aesthetic and collectible value of your Constellation. Milano Straps offers compatible customizable straps online.

The lifespan depends on the leather and use: quality alligator lasts 3-5 years with daily wear; Italian calf 2-4 years; shell cordovan up to 7-8 years. Vegetable-tanned leathers develop patina but may require replacement sooner. The Casati Milano warranty covers 18 months from purchase.