Strap for Constellation Quartz 33.5 Stainless Steel / Yellow Gold / Diamond / Silver

The lug width of the Constellation 1217.30.00 is 16 millimetres. This measurement refers to the distance between the two lateral case pins (measured from inside to inside). Verifying this measurement with a digital caliper is essential before purchasing a compatible strap, as even small errors compromise fit.

For this model we recommend black or burgundy alligator, which reflects the formal elegance of the two-tone case. Vegetable-tanned calf is ideal if you seek a patina that evolves over time. Shell cordovan represents the ultimate in durability and natural waxy finish, enhancing the reflections of yellow gold.

Obtain two tools called spring bar tools. Press the pin from one end: this releases the old strap. Align the new strap with the pin and press into position until you feel the click. Check that the pin is fully inserted on both sides. The operation requires care to avoid scratching the case.

Absolutely. Any strap made for 16 millimetre lugs is mechanically compatible with your 1217.30.00. The choice of material, colour and style is entirely personal. Brands like Casati Milano produce handcrafted straps that often exceed the construction specifications of original straps.

A quality leather strap, if properly maintained, lasts between 3 and 5 years with daily wear. Shell cordovan reaches 7-10 years. Vegetable-tanned leather develops a beautiful patina but requires periodic cleaning with a damp cloth. Exposing the strap to excessive sweat, water and direct sunlight reduces durability. Rotating between multiple straps significantly extends the life of each one.