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

The lug width of the ProPilot is 20 mm. This measurement corresponds to the distance between the two pins connecting the case to the strap. Verify the width by placing a digital calliper against the inner shoulders of the pins: it must read exactly 20 mm. This dimension ensures complete compatibility with aftermarket straps without adapters.

The ProPilot pairs excellently with vegetable-tanned leather straps (Tuscan alligator, calf leather), NATO straps in Cordura canvas, and fluoroelastomer rubber straps. For those seeking aesthetic warmth, a dark brown or greyish-salmon leather strap emphasizes the watch's aeronautical character. For critical environments (long flights, humidity), rubber maintains elasticity and permits frequent cleaning. The choice depends on your intended usage context.

Position the watch on a soft cloth with the case face-down. Locate the spring bar pins connecting the current strap to the case lugs. Use a dedicated strap removal tool or thin flat instrument to gently compress the internal spring, then withdraw the pin. Repeat on the opposite side. Insert the new strap by aligning the holes with the case lugs, then reinsert the pins until you feel a click. Verify that the strap is secure on both sides before wearing the watch.

All straps with a 20 mm lug width are compatible with the ProPilot 01 798 7773 4284 HB-ZQN-Set. Compatibility includes leather options (alligator, calf, goat), NATO fabrics, rubber straps, and straps with deployante clasps or pin buckles. No adapters or case modifications are necessary. Ensure the strap offers appropriate thickness relative to case proportions and that colour complements the watch's technical character.

A vegetable-tanned leather strap, worn daily without constant exposure to water or excessive perspiration, maintains structural integrity for 3–5 years. Frequent exposure to humidity reduces lifespan to 2–3 years. Patina (natural oxidation of leather) evolves positively over time, creating a unique surface on each specimen. Regular cleaning with a damp cloth and immediate drying extend strap longevity. Although leather ages, this process is part of the material's beauty, not a defect.