Strap for Navitimer 01 43 Stainless Steel / Black Arabic / Calf / Pin

The lug width of the Breitling Navitimer AB012012/BB02/435X/A20BA.1 is 22 mm. This measurement refers to the internal distance between the two lugs of the case and determines the correct strap width for any replacement. It is advisable to confirm the measurement with a calliper before purchasing a strap.

For the stainless steel Navitimer in 43 mm, the most suitable materials are natural-grain alligator leather — which complements the toothed bezel — and vegetable-tanned Tuscan calfskin for those seeking an authentic patina over time. A stainless steel deployant clasp is preferable to a standard buckle as it distributes tension more evenly across the strap and extends its service life.

The strap is removed using a springbar tool to release the spring bars securing the strap to the lugs. Work on a soft surface to protect the dial and case. The original Breitling spring bars for 22 mm measure approximately 20–21 mm in length; always verify compatibility before fitting a replacement strap.

Yes, there is a wide range of aftermarket straps compatible with the 22 mm lug width. Milanostraps.it offers a curated selection of handcrafted straps in leather, alligator, shell cordovan and technical materials, all specifically designed for 22 mm lugs with tapered ends suited to the Navitimer's lug geometry. Using an aftermarket strap does not affect the mechanical integrity of the watch.

The lifespan of a leather strap depends on the material, frequency of use and maintenance. A quality vegetable-tanned calfskin strap typically lasts 2–4 years with daily wear. Well-maintained alligator leather can exceed 5 years. Prolonged exposure to water, perspiration and direct sunlight accelerates deterioration; rotating between straps and applying a neutral leather conditioner periodically will extend wear significantly.