Oris Big Crown ProPilot X Calibre 115: A Fully Skeletonised Oris Movement

Oris Big Crown Propilot X Calibre 115 6

If you are quite familiar with Oris, you will know this brand only makes mechanical watches, and from the beginning of 1904 to 1981, they succeeded in making 279 in-house movements.

For some reason, they went on a hiatus in making new Calibre and it was only in 2014 that Oris decided to return to the roots of mechanical watchmaking by launching Calibre 110 on its 110th birthday.


Since then, almost every year we have seen the new ProPilot Calibre, with various additional complications. Calibre 112 has a second-time zone and indicator day/night, Calibre 114 has GMT, and so on.

And, if you keep the counting on, the new Calibre 115 is the 285th in-house movement of Oris and is its first movement skeleton. This timepiece took all the good things from its predecessor and put it into one classy watch.

Oris Big Crown Propilot X Calibre 115 2

Calibre 115 got a movement skeleton, which is a place where the components of the Calibre that are not too important is removed. Because the movement skeleton is lighter, the process naturally reduces the amount of energy needed to power the watch, coupled with releasing date complication.

Oris Big Crown Propilot X Calibre 115 3

The small seconds’ display has also shifted slightly downward to adapt to skeleton construction so that no additional wheels are needed to ignite it. In short, this watch is minimalist in all respects, energy needs, and construction, where Calibre 115 has been stripped down to its basic essence.

Oris Big Crown Propilot X Calibre 115 5

Made with Grade 5 and Grade 2 titanium, the Big Crown ProPilot X Calibre 115 feels very light and sturdy. From the shape of the case measuring 44mm and a sturdy aesthetic, you might think that this watch will feel heavy but it is actually not.

Oris Big Crown Propilot X Calibre 115 1

Because Oris Big Crown ProPilot X Calibre 115 was inspired by the aviation world, the design of the bracelet clasp was inspired by the shape of an aircraft seat belt buckle, of course, it was an interesting detail to see closely.

Oris Big Crown Propilot X Calibre 115 4

With that in mind, the ProPilot X Calibre 115 certainly looks like something the fans will look for. Looks cool, the best in construction and design, enhanced with a light and comfortable feel on the wrist, making this watch a winner for Oris.

  • Case: Oris Big Crown ProPilot X, 44.00 mm, 1.732 inches, Titanium
  • Material: Multi-piece titanium case
  • Size: 44.00 mm, 1.732 inches
  • Top Glass: Sapphire, domed on both sides, double-sided anti-reflective coating
  • Case Back: Titanium, screwed, see-through sapphire glass
  • Operating Device: Titanium screw-in security crown
  • Water Resistance: 10 bar
  • Interhorn Width: 22 mm
  • Movement: Hand-winding 10-day power reserve, skeleton developed by Oris
  • Dial: Skeleton
  • Strap/Bracelet: Titanium
Richard Leon Percival

Richard Leon Percival

Total posts created: 1506

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