Strap for Navitimer B01 Chronograph 46 Stainless Steel / Black / Alligator - Folding

The lug width (ansa) of the Breitling Navitimer 46mm is 24 millimetres. This measurement denotes the distance between the lugs connecting the case to the strap's spring bars. It is a non-standard dimension, specific to the 46mm Navitimer models, and is not compatible with 22mm or 26mm straps. Always verify lug width before purchasing an aftermarket strap.

Alligator mississippiensis is the most cohesive choice aesthetically and functionally, as its geometric texture dialogues naturally with the circular slide-rule bezel. Shell cordovan is a refined alternative, developing a golden patina over time that mirrors the satinised steel case. Vegetable-tanned calf offers lower environmental impact and a hammered texture emphasising the bespoke approach. For informal use, NATO or rubber straps provide durability without excessive maintenance requirements.

Strap replacement involves removing the 24mm spring bars connecting the case to the current lugs. Use a dedicated tool (spring bar removal tool) to release the bar without damaging the case. Align the new strap's lugs with the case holes and reinsert the spring bar until the click engagement confirms securing. If unfamiliar with this procedure, a professional watchmaker can perform it in minutes. Milano Straps straps are delivered with detailed mounting instructions and WhatsApp support.

Yes, any strap with 24mm lug width is compatible, as the spring bars are standardised. However, construction quality varies significantly between manufacturers. Milano Straps offers straps manufactured to precise tolerances (±0.2mm), selected leathers, and professional stitching, ensuring rotational stability and longevity. Avoid budget straps with approximate tolerances, which cause excessive play and potential slippage during bar insertion.

A quality leather strap (alligator, shell cordovan, vegetable-tanned calf) typically lasts 3–5 years with daily wear, depending on exposure to humidity, heat, and repetitive movement. Alligator and shell cordovan, being naturally robust leathers, tend toward the upper range. Regular maintenance (cleaning with damp cloth, drying, treatment with wax or balm 2–3 times annually) significantly extends service life. Milano Straps offers an 18-month warranty and regeneration services for worn straps.