Strap for Navitimer 01 43 Stainless Steel / Blue Sky / Croco / Pin

The lug width of the Breitling Navitimer AB012512/C864/732P/A20BA.1 is 22mm. This measurement should be taken with a digital calliper positioned internally between the two case lugs, at the point where the strap inserts. It is a standard size within the high-end sport chronograph segment, offering a wide availability of compatible straps in leather as well as technical materials.

For the Navitimer AB012512/C864/732P/A20BA.1, the most suitable materials are alligator leather for formal occasions — its natural grain contrasts elegantly with the brushed steel — and vegetable-tanned calfskin for everyday wear, which develops a personal patina over time. Shell cordovan is the most refined choice for those seeking a restrained, compact aesthetic. For sporting or summer use, a NATO nylon or vulcanised rubber strap are practical alternatives. A steel deployant clasp is recommended for frequent wearers.

To replace the strap on the Navitimer, remove the two spring bars securing the original strap between the case lugs. Use a spring bar tool, inserting the forked tip into the lateral slot of the bar to compress and slide it out. Work on a soft surface to avoid scratching the case. Insert the new 22mm strap by carefully aligning the spring bars with the inner holes in the lugs. If in doubt, it is advisable to consult a watchmaker or visit the Casati Milano atelier.

Yes, the Breitling Navitimer uses a standard spring bar attachment system with a 22mm lug width, making it compatible with all aftermarket straps made to this measurement. Milanostraps.it offers a curated selection of handcrafted 22mm straps — in alligator, calfskin, shell cordovan, NATO and rubber — designed to complement the proportions of the Navitimer case without aesthetic or functional compromise.

The lifespan of a leather strap depends on the type of hide, care received and frequency of wear. A quality calfskin strap, worn daily under normal perspiration conditions, typically lasts 18 to 24 months. Alligator leather and shell cordovan, owing to the greater density of their fibres, tend to last longer — often 3 to 5 years with proper maintenance. Casati Milano straps include an 18-month warranty against manufacturing defects. To extend the strap's life, it is advisable to rotate between two straps and apply a neutral leather conditioner periodically.