Strap for Big Crown ProPilot GMT Rega Fleet Airbus Helicopters H145 - HB-ZQG

The lug width is 20 mm. This measurement is the modern aviation standard and is taken from the inner points of the lugs. It is essential to verify this dimension before purchasing an aftermarket strap, as an incompatible lug width will not attach correctly.

It depends on your intended use. For everyday elegance, we recommend black alligator or vegetable-tanned calf leather (which develops patina over time). For operational use in harsh environments, military-grade black NATO or FKM rubber offer superior resistance to moisture and temperature fluctuations. Atelier Casati Milano personalises every solution to your wrist measurements.

The Oris ProPilot uses standard spring bar lugs. You will need a simple spring bar removal tool: position it beneath the lug terminal, lift gently to release the spring, then extract the bar. Installing the new strap is the reverse procedure. If you are unfamiliar with this process, Casati Milano's atelier offers a strap change service at home by appointment.

Yes, provided the lug width is 20 mm. Milanostraps offers a curated selection of artisanal straps from specialised brands: each piece is tested for mechanical compatibility and longevity. We advise against cheap generic straps, which often exhibit poor finishing and premature degradation.

A premium leather strap (alligator or vegetable-tanned calf) will last 3–5 years with daily wear, provided it receives regular maintenance: dry the strap after water exposure, avoid contact with perfumes and aggressive detergents, and condition it every six months with a colourless natural wax. Patina development is normal and desirable; lug breakage signals that the strap has reached the end of its service life.