Strap for Fifty Fathoms Tourbillon 8 Jours Red Gold / Diamonds / Black Canvas

The Blancpain Fifty Fathoms 5025-9530-52A features a lug width of 23mm, measured between the lateral pins of the case. This width is specific to this red gold 45mm version and allows the use of standard buckles and appropriately proportioned straps.

French alligator and shell cordovan are the most appropriate materials. Alligator maintains a restrained aesthetic dialogue with red gold, whilst shell cordovan amplifies colour depth and develops a compelling patina over time. Vegetable-tanned calf represents a narrative alternative for those who appreciate visible tactile evolution.

The procedure requires a spring bar tool and careful handling. The lateral pins of the case must be pushed sideways with uniform pressure to avoid scratching the gold case. We recommend proceeding one lug at a time, lifting the strap from the case and inserting the new one without forcing. If inexperienced, consult a trusted watchmaker.

Yes, any strap with 23mm lug width is compatible with the Fifty Fathoms 5025-9530-52A. It is essential to verify the exact measurement before purchase. Our handcrafted straps are available in this size and manufactured with premium materials such as alligator, shell cordovan and vegetable-tanned leathers.

Durability depends on material and usage. A handcrafted alligator or shell cordovan strap of quality offers an average lifespan of 5–8 years with regular use and proper care (drying post-immersion, annual treatment). Vegetable-tanned calf straps tend to age visibly sooner, developing a patina that is an aesthetic merit. Casati Milano's 18-month warranty covers manufacturing defects.