Technical Archive

Oris
ProPilot 01 751 7761 4187-Set— lug 20mm

Oris ProPilot 01 751 7761 4187-Set: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Big Crown ProPilot Big Date Okavango Air Rescue

Artisanal Note

"This model requires a precise 20mm lug width to preserve the original sartorial balance."

Technical Specifications

Oris 01 751 7761 4187-Set
Lug Width
20 mm

The essential strap measurement.

Browse 20mm straps →
Reference

01 751 7761 4187-Set

Movement

Oris caliber Oris 751 Hours, Minutes, Seconds | Date

The Heritage

The Oris ProPilot reference 01 751 7761 4187-Set features the automatic Oris 751 caliber with hours, minutes, seconds and date indication. The timepiece has 20mm lugs and draws inspiration from the Swiss brand's aeronautical tradition. The ProPilot collection reinterprets the aesthetic codes of civil and military aviation instruments.

FAQ

What is the lug width of the Oris ProPilot 01 751 7761 4187-Set?

The lug width is 20mm, a specific dimension of the ProPilot collection that ensures ideal proportions with the 41mm case. This measurement guarantees superior wrist stability and compatibility with a wide range of artisanal straps.

Which strap is recommended for the Oris ProPilot?

The best pairing depends on intended use: black alligator for formal contexts, vegetable-tanned calf for those who appreciate natural patina development over time, NATO in polyamide or silk blend for tactical versatility, FKM rubber for aquatic environments or high-humidity conditions.

How do I change the strap on the Oris ProPilot 01 751 7761 4187-Set?

Obtain a spring bar tool. Insert the tip into the small lateral opening of the lug and lift slightly to push the pin out of its housing. Repeat on the opposite side. Insert the new strap, aligning the pins and ensuring perfect contact without lateral play.

Are aftermarket straps compatible with the Oris ProPilot 01 751 7761 4187-Set?

Yes, provided they respect the 20mm lug width. Straps in alligator, calf, NATO and rubber designed for 20mm fit perfectly. Ensure the material and colour harmonise with the avionic aesthetic of the timepiece.

How long does a leather strap last?

A quality alligator or vegetable-tanned calf strap, with proper maintenance, maintains functional efficiency for 5-8 years. Natural patina develops within the first 12-18 months; over time the leather softens and acquires character. Durability depends on frequency of wear and environment of use.