Strap for Big Crown ProPilot Big Date PVD / Black

The lug width of the Oris ProPilot 01 751 7697 4264-07 5 20 19GFC is 20mm. This measurement corresponds to the distance between the spring bar posts on the case. To verify it, measure the space between the two inner shoulders where the strap sits. ISO-standard 20mm artisanal straps are universally compatible with this model.

The choice depends on use case and aesthetic preference. For formal environments, alligator in grey or black elevates elegance whilst maintaining seriousness. Vegetable-tanned calf offers evolving patina over time. For operational use (aviation, mechanics), a grey NATO or black FKM rubber ensures practicality and durability in demanding conditions. The smoke grey dial of the ProPilot accommodates all options with coherence.

Obtain a spring bar removal tool (a small lever with pointed end). Place the watch on a soft surface to avoid scratches. Insert the tool tip into the groove of one spring bar, pushing toward the case centre to compress the internal spring. The spring bar will retract, releasing the lug. Repeat on the other side. Insert the new spring bar into the strap holes, aligning the strap shoulders with the case lugs, and press until you hear a click.

Yes, any strap with a 20mm lug width is compatible with the ProPilot 01 751 7697 4264-07 5 20 19GFC. Milanostraps offers a dedicated collection of artisanal 20mm straps in leather (alligator, calf, shell cordovan), NATO and FKM rubber. All straps are ready for shipment and customisable online, respecting the model's technical specifications.

Longevity depends on material and use patterns. Vegetable-tanned calf typically lasts 3–5 years with daily wear, accumulating patina that increases character. Alligator, being a denser skin, can exceed 7 years. Shell cordovan reaches even 10 years. Continuous wear, exposure to sweat and UV rays accelerates ageing. Regular maintenance—applying nourishing balms specific to the leather type—significantly extends strap life.