Oris · ProPilot
Strap for Big Crown ProPilot Altimeter Meter / Black Textile
Takes 23 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
The ProPilot 01 733 7705 4164-Set 5 23 15FC, seen from the bench
Frequently asked questions
What is the lug width of the Oris ProPilot 01 733 7705 4164-Set 5 23 15FC?
The lug width is 23mm. This measurement represents the distance between the two horizontal pins that attach the strap to the case and determines the compatible strap catalogue. The measurement must be taken perpendicularly between the two attachment points, not across the total case width.
Which strap material is most suitable for the 47mm ProPilot?
The ProPilot performs exceptionally well with three material categories: alligator for those seeking contained luxury with evolving patina over time; vegetable-tanned calf for those preferring sobriety and craftsmanship; vintage ballistic NATO for those wishing to emphasise the watch's avionic and military heritage. Rubber represents a contemporary option for humid environments. Your choice should reflect intended usage and wear frequency.
How do you change the strap on an Oris ProPilot 01 733 7705 4164-Set 5 23 15FC?
Strap replacement is accomplished using a spring bar tool: insert the flat tip into the lateral hole of the pin, apply gentle inward pressure to release the retention system, and remove the pin from its seat. Reverse the procedure to install the new strap. If the operation generates uncertainty, it is advisable to entrust the work to an experienced watchmaker to avoid damage to the lugs.
Are there compatible aftermarket straps available in the 23mm lug width?
Yes, the aftermarket strap market for 23mm lug width is extensive and varied. Milano Straps offers a carefully curated selection of handcrafted leather straps (alligator, calf, shell cordovan, vegetable-tanned), ballistic fabrics and rubber, all conforming to the ProPilot's specific dimensions. Construction quality, stitch type and finish are parameters that significantly differentiate straps at equivalent price and durability levels.
What is the average lifespan of a leather strap for this watch?
A handcrafted quality leather strap (alligator or vegetable-tanned calf) subjected to moderate and daily use lasts between 4 and 7 years. Longevity depends on wear frequency, climatic conditions, care during seasonal changes and tanning type. Vegetable-tanned leathers require light but consistent maintenance (occasional conditioning), whilst alligator is more self-sufficient. The patina that emerges over time is a desirable characteristic, not a flaw.
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.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only