Strap for Black Bay 31 S&G / Champagne / Bracelet

The lug width of the Tudor Black Bay One 79603-0005 is 16 millimetres. This measurement is defined as the distance between the two vertical attachment pins of the case and is the exact specification required for strap compatibility with this model.

The choice depends on intended use and personal preference. For classical elegance, we recommend dark brown alligator or vegetable-tanned calf leather, which develop patina over time and pair naturally with the case's yellow gold. For daily versatility, a military grey NATO or FKM rubber maintains the tool watch aesthetic. A brushed steel deployant clasp completes the functional offering.

The process is straightforward: use a spring bar tool to gently extract the vertical pins from their housings. Position the new strap, aligning the holes at the extremities, then reinsert the pins until they seat fully. For timepieces of value such as the 79603-0005, we recommend using a watch holder (V-block) to prevent accidental scratching of the bi-metal case during the operation.

Any strap with a 16mm lug width is compatible. Milano Straps produces artisanal straps in this specification using premium leather (alligator, calf, shell cordovan) with personalisation options including embroidered initials or stitch colour selection. The Casati Milano atelier also offers bespoke service with personal leather selection and detailed consultation.

Durability depends on leather type and frequency of wear. A quality alligator or calf strap worn daily maintains structural integrity for 3–5 years. Aesthetic patina develops naturally after several months. With proper care (drying after humidity exposure, protection from excessive heat), a leather strap can serve for 7–10 years. Milano Straps products include an 18-month warranty against manufacturing defects.