Strap for Navitimer B01 Chronograph 46 Stainless Steel - Red Gold / Blue / USA

The lug width of the Breitling Navitimer UB01372A1C1P1 is 24 millimetres. This measurement is determined by the distance between the case lugs and remains fixed for this model. A strap specifically dimensioned for 24mm ensures correct fit without lateral play or wrist constriction.

For the UB01372A1C1P1, Australian or Nile crocodile is the optimal choice due to its uniform grain and structural integrity, which enhance the watch's luxury identity. Vegetable-tanned calf is a valid alternative for those preferring a rustic patina and appreciating a finish that develops with age. Ballistic NATO straps also effectively reference the Navitimer's aviation heritage.

The strap is replaced by removing the spring bars using a specialised tool (disc or pin extractor). It is essential to secure the watch properly during the operation and verify that the new strap is correctly dimensioned for 24mm. If you are inexperienced with watch repair, we recommend contacting an authorised Breitling service centre or a specialised artisanal atelier.

Yes, absolutely. A 24mm aftermarket strap made from quality materials (alligator, calf, shell cordovan) does not compromise watch functionality and allows you to customise the aesthetic according to your needs. Artisanal straps offer greater freedom in finishes, colours and stitching than original Breitling straps.

Longevity depends on material and usage. An alligator strap subjected to vegetable tanning, used daily under normal conditions, maintains aesthetic and structural functionality for 3–5 years. Calf is slightly less durable, with a lifespan of 2–4 years. Factors such as direct sunlight exposure, saltwater and humidity fluctuations accelerate aging. The Casati Milano atelier provides an 18-month warranty on all bespoke straps.