Strap for Nav B-Chrono 44 Bracelet

The lug width of the Steinhart Pilot C0402 is precisely 22mm. This measurement derives from the proportions of the 44mm case and represents the aesthetic and functional equilibrium for this class of watch. To measure accurately, position a digital calliper between the two lateral lugs of the case, perpendicular to its surface.

We recommend straps in alligator leather with vegetable tanning in chocolate brown or tobacco vitello for elegant daily wear. If the watch is destined for frequent operational use or humid environments, select nylon Cordura NATO or technical rubber fabric. All these materials ensure durability and compatibility with the 22mm lug width.

Use a spring bar tool (a specialised device for lug pin removal). Insert the flat tip into the lower recess of the lateral pin, apply gradual downward pressure to compress the internal spring, then extract the pin from the case. Repeat on the opposite side. To install the new strap, insert the pins into the strap eyelets, then position the pin into the case until it clicks into place.

Yes, all straps with a 22mm lug width are fully compatible with the Pilot C0402. You may select from leather (alligator, vitello, cordovan), technical NATO fabrics, composite rubbers and hybrid constructions. Compatibility is guaranteed by the standard 22mm measurement.

Durability depends on the material and usage patterns. Alligator, with proper vegetable tanning, resists 3–5 years under moderate daily use. Vitello, being softer, lasts 2–3 years. Longevity increases significantly if you alternate the strap with other models, avoiding continuous exposure of the same leather to moisture and sunlight. Regular maintenance (cleaning, conditioning) extends life by a further 12–18 months.