Strap for Navitimer GMT Stainless Steel / Black / Calf / Pin

The lug width is 24mm. This measurement represents the distance between the spring bars connecting the strap to the case lugs. It is a substantial dimension, characteristic of large-format chronographs, and requires straps specifically engineered for this width. Always verify compatibility before purchase, as 24mm is a non-standard measure in civil watchmaking.

For the 48mm Navitimer, we recommend three engineered choices. Genuine alligator delivers elegance and natural grip, ideal for maintaining formal-to-sport versatility. Cordura NATO remains coherent with the watch's avionic heritage, entirely waterproof and readily interchangeable. FKM rubber represents pure technical choice, water-resistant and maintenance-free. All require minimum thickness of 2.5mm to support the substantial proportions of the case.

Strap change requires a precision tool (spring bar removal tool) to compress the lug-mounted spring bars. Position the watch with the lug facing upward, insert the tool into the gap between the bar and the lug, apply gentle compression, and extract the bar. Repeat for the second bar. Align the new strap's end links with the lug holes and insert the bars sequentially, verifying both are fully seated. Avoid impact during the operation.

Any 24mm strap is physically compatible with this model, provided the end links feature drilled holes to accommodate Breitling's original spring bars. However, constructive compatibility requires the strap to exceed 2.5mm thickness and maintain sufficient structural rigidity. Bespoke artisanal straps from Casati Milano guarantee premium build quality and materials, plus customisation in leather, colour, and thread.

Longevity depends on material and wear patterns. Quality alligator or calf, with daily wear, maintains structural integrity between 4 and 8 years before replacement. Natural ageing (patina, creasing) does not imply deterioration: it is aesthetic evolution. Exposure to sweat, fresh water and UV accelerates wear; saltwater and extreme temperatures compromise it. Rotating between multiple straps extends each strap's service life. Artisanal straps employing vegetable tanning offer superior resistance and controlled patination.