Strap for Navitimer 01 46 Blacksteel Diamondworks / Black / Rubber

The lug width of the Breitling Navitimer MB0128AN.BE51.252S is 22mm. This measurement corresponds to the internal distance between the two lugs of the case and determines compatibility with any aftermarket strap. To verify it on your own piece, a slide calliper placed inside the lugs, flush against the case, will give you the precise reading.

For a 46mm aviation chronograph such as the Navitimer MB0128AN.BE51.252S, an alligator strap with wide Mississippiensis scales offers the most balanced combination of proportion and formal elegance. For daily wear, shell cordovan or vegetable-tanned calf leather are excellent alternatives, both developing a distinctive patina over time. A deployant clasp in stainless steel is recommended to protect the spring bars and ensure consistent wrist placement.

The Navitimer MB0128AN.BE51.252S uses standard 22mm spring bars. To remove the strap, insert a spring bar tool or curved-tip screwdriver into the notch on the spring bar inside the lug, compress the spring and slide the strap free. The operation does not require a watchmaker, but it is advisable to work on a soft surface to avoid scratching the case. Some Navitimer references use screw-type bars, in which case a small flat-head screwdriver is required instead.

Yes. Any strap with a standard 22mm attachment is compatible with the Navitimer MB0128AN.BE51.252S. milanostraps.it offers a curated selection of handcrafted straps — alligator, calf leather, shell cordovan, NATO and rubber — with stitching and linings proportioned for large-diameter watches. For a fully bespoke solution, the Casati Milano atelier produces made-to-measure straps with direct leather selection on site.

The lifespan of a leather strap depends on material quality, frequency of use and exposure to perspiration and moisture. A handcrafted alligator or shell cordovan strap, with regular but not intensive daily use, maintains its structural integrity and appearance for 3 to 5 years. Vegetable-tanned leather develops a patina that enriches its character over time. milanostraps.it backs its straps with an 18-month warranty against manufacturing defects; rotating between at least two straps and applying a leather conditioner periodically will extend their service life considerably.