Strap for Nighthawk

The lug width of the Citizen Eco-Drive CA4377-53H is 24mm. This dimension is standardised for the model and allows the installation of straps with a 24-millimetre lug width. Measuring the lugs correctly from outer end to outer end ensures mechanical compatibility and installation without adapters.

For the CA4377-53H, we recommend a vegetable-tanned calf leather strap or full-grain alligator for everyday formal wear. For sports or aquatic environments, a nylon NATO strap or vulcanised rubber ensures absolute durability. Shell cordovan represents the choice for those seeking premium leather with honourable ageing over time.

The strap change on the CA4377-53H is performed via the standard fixing pins present on the lugs. Using a spring bar tool, gently remove the pin from the outside inward, extract the previous strap and insert the new strap with a 24mm lug width. A straightforward operation with no risk to the case.

Yes, the CA4377-53H accepts any aftermarket strap with a 24mm lug width. Citizen's standardised construction ensures full compatibility with leather, cotton, nylon and rubber straps provided they respect the required lug width. Milano Straps artisanal straps are specifically developed for this measurement.

The lifespan of a leather strap depends on the tanning method and usage. Vegetable-tanned leather guarantees 3-5 years of moderate daily use, with visible ageing that enhances aesthetic character. Shell cordovan and alligator exceed 5-7 years with periodic maintenance. Prolonged exposure to perspiration, intense humidity or UV rays accelerates the natural ageing of the leather.