Oris · ProPilot X

Strap for Oris ProPilot X 01 115 7759 7128

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

Lug width22 mm
Case diameter44 mm
Reference01 115 7759 7128
FamilyProPilot X
MovementOris caliber Oris 115 Hours, Minutes, Small Seconds, Additional 24 Hour Hand (adjustable) | Power Reserve Indicator, Skeleton

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 X 01 115 7759 7128

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The ProPilot X 01 115 7759 7128, seen from the bench

The ProPilot X features the Oris 115 caliber with hours, minutes, small seconds and an adjustable 24-hour hand, plus a power reserve indicator and a skeletonized movement. The 44mm titanium case has 22mm lugs. The skeletonized dial allows a view of the internal mechanism through openings that highlight the caliber's structure.

Frequently asked questions

What is the lug width of the Oris ProPilot X 01 115 7759 7128?

The lug width (ansa measurement) of the Oris ProPilot X 01 115 7759 7128 is 22mm. This measurement refers to the distance between the metal pins (lugs) of the case where the strap attaches. To verify the width, use a digital calliper positioned between the two case lugs.

Which strap is most suitable for the Oris ProPilot X 01 115 7759 7128?

For the ProPilot X 01 115 7759 7128, we recommend straps that respect the technical and mineral aesthetic of the skeleton-cased timepiece. Alligator leather in warm cognac or a premium NATO in recycled fibre maintains visual coherence with the transparent case. FKM rubber in anthracite grey is ideal for sports applications, whilst shell cordovan from vegetable-tanned leather offers contemplative elegance with evolving patina over time.

How do I change the strap on the Oris ProPilot X 01 115 7759 7128?

Removing the strap requires access to the spring bars—the metal pins connecting the strap to the case lugs. Use a spring bar tool (a small instrument with a forked end) to apply controlled pressure on one spring bar, sliding it gently out. Once the pin is extracted, the strap will loosen. Repeat on the opposite side. Installation follows the reverse procedure.

Is an aftermarket 22mm strap compatible with the Oris ProPilot X 01 115 7759 7128?

Yes, any strap with a 22mm lug width is compatible with the ProPilot X 01 115 7759 7128, provided the total width of the strap does not exceed the visual proportions of the case (typically straps measuring 2–2.5cm wide are ideal for this lug size). Always verify that the strap's spring bars are removable for complete mechanical compatibility.

What is the lifespan of a leather strap on the Oris ProPilot X 01 115 7759 7128?

A high-quality leather strap (alligator, shell cordovan, or calf) on a daily-wear timepiece has an estimated lifespan of 3–5 years, dependent on frequency of use, sun exposure, moisture and material care. Leather develops patina over time: this aesthetic evolution is a positive characteristic of natural materials. Regular maintenance (cleaning with a damp cloth, occasional application of balm) significantly extends the longevity of the strap.

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