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

The lug width of the Breitling Navitimer UB01371A1B1P1 is 24 millimetres. This measurement is Breitling's proprietary standard for contemporary Navitimer models in the medium-large case configuration and reflects the engineering requirement to support robust straps compatible with the 46mm case proportions. To verify this measurement correctly, observe the space between the two lugs of the case where the strap connects.

The most suitable strap depends on usage and aesthetic preferences. Alligator in vegetable tanning is the noblest choice, enhancing the rose gold tone and developing a unique patina over time. Shell cordovan offers sophisticated elegance with natural lustre. Vegetable-tanned calf guarantees immediate softness and characteristic ageing. For a sport-aviation approach, a NATO strap in heavy canvas remains true to the model's heritage. Structured rubber is the most versatile solution for varying weather conditions.

The Breitling Navitimer is fitted with straight lugs (not integrated), which allow for quick strap changes. Use a strap removal tool with a flat or thin tip, insert it gently into the lateral hole of the lug to push the titanium or steel locking pin, then extract the pin from below. Once the old strap has been removed, reinsert the pin into the new strap and secure the lugs. It is advisable to perform this operation on a soft surface to prevent scratches on the case.

Yes, the Breitling Navitimer UB01371A1B1P1 is fully compatible with aftermarket straps measuring 24mm lug width, provided the locking pins and lugs of the strap comply with Breitling specifications. It is essential to verify that the strap thickness is not excessive for the case lug, typically between 3.5 and 5.5mm. Straps from specialised artisans guarantee full compatibility and superior durability compared to generic straps.

The lifespan of a leather strap depends on material quality, construction, and usage intensity. An alligator or shell cordovan strap with vegetable tanning can last 5-8 years with regular maintenance (monthly cleaning, immediate drying after moisture exposure). Vegetable-tanned calf, more delicate, lasts 3-5 years under daily intensive use. Structured rubber remains functional for 4-6 years. Casati Milano straps include an 18-month warranty against manufacturing defects and maintain superior elastic properties compared to industrial straps.