Strap for Tudor Black Bay One 79673

The Tudor Black Bay One 79673 features a 20mm lug width (measured between the spring bar pins). This is the standard dimension for straps compatible with this model. Measurement should be taken by positioning a calliper horizontally between the two pins, excluding the length of the pins themselves.

For the 79673, we recommend an alligator in dark tones (black or chocolate brown) to enhance the yellow gold case, or vegetable-tanned calf leather that develops patina like the bronze dial. Your choice depends on intended use: alligator for formal occasions, natural calf for versatility, rubber or NATO for sports.

Strap replacement is performed using the spring bar pins. You will need a spring bar tool (a small fork-shaped professional tool) to gently compress the internal spring of the pin and extract it from its seat. Once the old strap is removed, align the new strap's pins with the lugs and ensure symmetrical positioning. The operation requires care to avoid case damage.

Yes, the 79673 is fully compatible with quality aftermarket 20mm straps. Any strap with a 20mm lug width fits perfectly. We recommend checking strap thickness to ensure harmonious overlap on the bicolor case flanks.

A quality artisanal leather strap (alligator, calf, shell cordovan) typically lasts 3-5 years with regular wear, depending on usage frequency and climate conditions. Longevity increases significantly with preventive maintenance: avoid prolonged humidity exposure, clean regularly with soft cloth, and occasionally apply leather-specific conditioner. A well-maintained strap can last over 7 years.