Strap for Tudor Black Bay Pro 79470

The Tudor Black Bay Pro 79470 features a lug width of exactly 22 mm. This measurement is calculated centre-to-centre between the two lug attachments (lugs) where the strap is inserted. You can verify this dimension by measuring the internal space between the attachment pins of the case using a digital calliper.

The ideal strap depends on your intended use. For professional aesthetics: alligator leather with vegetable tanning in cognac or black tones, which develops natural patina over time. For intensive marine environments: technical NATO in Cordura fabric with rubber nitril underlay, ensuring breathability and rapid drying. For daily versatility: black calf leather with vegetable tanning, which naturally develops character with wear.

Strap change requires an appropriate spring bar tool. Position the watch on a soft surface, insert the tool tip under the lug pin starting from below, and apply gentle upward pressure until the pin retracts. Remove the pin completely, take off the old strap, align the new strap with the lug attachment, and reinsert the pin until you hear the closure click. Repeat for both sides.

All straps manufactured with a 22 mm lug width are compatible with the 79470. This includes alligator leather, calf leather, shell cordovan, technical fabrics (NATO, Cordura), FKM rubber, and stainless steel. It is essential to verify that the lug width is exactly 22 mm to avoid lateral play or tension on incorrect curves during wear.

Durability depends on construction quality, tanning method used, and intensity of wear. A high-quality leather strap with vegetable tanning typically requires replacement after 5-8 years of regular daily use. Prolonged exposure to humidity and chlorine accelerates wear. FKM rubber or NATO fabric straps resist degradation for 8-12 years with minimal maintenance, whilst shell cordovan can exceed 10 years whilst maintaining structural integrity.