Strap for Navitimer 1 B01 Chronograph 46 Stainless Steel / Black / Calf / Pin

The lug width of the Breitling Navitimer AB0127211B1X1 is 24 mm. This width is proportioned to the 46 mm case diameter and the model's substantial lugs. To confirm strap compatibility, measure the distance between the two lugs using a digital calliper, excluding the diameter of the metal lug pins themselves.

For the Navitimer AB0127211B1X1, we recommend alligator crocodile with vegetable tanning for vintage-sportive aesthetic coherence, calf leather with natural patina for softness and longevity, or high-tech rubber for those wishing to reduce visual mass perception of the case. Your choice depends on intended use: daily wear, formal, or technical.

The Navitimer AB0127211B1X1 is fitted with a spring bar (or deployante) mechanism integrated into the case. Remove the old strap by unscrewing the two side screws of the release mechanism (one per side), insert the new strap's lugs into the vertical slots, and retighten the screws uniformly. If you are inexperienced, consult a certified watchmaker or Casati Milano's service.

Yes, any strap with a 24 mm lug width is compatible with the Navitimer AB0127211B1X1, provided it has straight lugs (not bayonet-type) and is made from leather or materials of quality comparable to Breitling's. Artisanal straps with vegetable tanning are recommended as they age in harmony with the case's patina.

A high-quality leather strap typically lasts 3–5 years with daily wear, accounting for buckle cycles and humidity exposure. Vegetable-tanned leather develops natural patina and softens over time, extending perceived wear tolerance. A rubber strap lasts 5–7 years before degrading. Casati Milano offers an 18-month warranty on all bespoke straps.