Oris · ProPilot

Strap for Big Crown ProPilot Big Day Date Żelazny I

Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width22 mm
Case diameter45 mm
Reference01 752 7698 4184-Set
FamilyProPilot
MovementOris caliber Oris 752 hours, minutes, seconds | date, day
Year2015 - 2015
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the ProPilot 01 752 7698 4184-Set

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The ProPilot 01 752 7698 4184-Set, seen from the bench

The Oris ProPilot mounts the automatic caliber 752 with hour, minute, second, date and day of the week indication. The watch features 22mm lugs and reference 01 752 7698 4184-Set. The model is part of the brand's aviation collection dedicated to the world of aviation.

Frequently asked questions

What is the exact lug width of the Oris ProPilot 01 752 7698 4184-Set?

The lug width of the Oris ProPilot 01 752 7698 4184-Set is 22 millimetres. This measurement is critical for aftermarket strap compatibility and is calculated by measuring the internal distance between the lugs, excluding the case width itself.

Which strap is recommended for the Oris ProPilot 01 752 7698 4184-Set?

The ProPilot is best paired with straps in medium-grain alligator for daily elegance, vegetable-tanned calf leather with traditional Florentine tannage for natural patina development, or military NATO in Cordura for practicality and cockpit environment resistance. Your choice depends on the balance desired between aesthetics and functionality.

How do I change the strap on my Oris ProPilot 01 752 7698 4184-Set?

Strap changes on 22mm lugs are performed by carefully extracting the lug pins using a dedicated spring bar tool, taking care not to scratch the caseback or case. The new strap must present exactly 22mm internal width. The strap passantes must fully seat around the pins without excessive lateral play.

Can I use an aftermarket compatible strap with my Oris ProPilot 01 752 7698 4184-Set?

Yes, all straps with a 22-millimetre lug width are compatible. Quality artisanal aftermarket straps guarantee identical lug seating and rotational stability to original Oris straps, with the added benefit of aesthetic personalisation and material-specific options.

How long does a natural leather strap last on the Oris ProPilot 01 752 7698 4184-Set?

A vegetable-tanned leather strap on a 45mm watch like the ProPilot, with daily wear and annual maintenance (cleaning, occasional conditioning), lasts 5-7 years before replacement is needed. Patina develops progressively over the first 18-24 months, whilst structural wear becomes visible after 4-5 years of intensive use in humid or pressurised environments.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only