Strap for Navitimer 1 B01 Chronograph 46 Stainless Steel / Red Gold / Black / Bracelet

The Breitling Navitimer UB0127211B1A1 has a lug width of 24 mm, consistent with its 46 mm case diameter. To verify this measurement accurately, use a digital calliper placed internally between the two lugs: the correct value should read 24.0 mm.

For the bi-material Red Gold/Steel variant, vegetable-tanned alligator straps in cognac brown or midnight blue offer the most refined pairings. Brown enhances the warm tones of the red gold, while blue creates an elegant chromatic contrast. Shell cordovan in black provides exceptional durability and a formal profile, whilst a technical NATO strap references the watch's original aeronautical identity.

The strap is replaced using a spring bar tool with a fine tip. The 46 mm curved-lug case requires spring bars with an appropriate diameter (1.8 mm) and a length of 24 mm. The operation should be carried out carefully to avoid scratching the case, ideally with the watch resting on a soft cloth or watchmaker's pad.

Yes, there are numerous aftermarket 24 mm straps compatible with the Navitimer UB0127211B1A1. It is essential to select straps with a curved end at the attachment point to match the shape of the case lugs. milanostraps.it offers a curated selection of 24 mm handcrafted leather, rubber and nylon straps specifically designed for this lug format.

The lifespan of a leather strap depends on the material and conditions of use. A quality vegetable-tanned alligator strap, kept away from excessive moisture and perspiration, can last between 3 and 5 years whilst retaining an excellent appearance. Shell cordovan, owing to the density of its fibres, achieves even greater longevity. The use of a deployant clasp significantly reduces mechanical stress on the leather, thereby extending its service life.