For the Big Crown ProPilot X Caliber 115, Oris’s watchmakers took the spirit of Caliber 110 and imagined a fully skeletonized Oris movement. Traditionally, skeletonisation provided a window for a watchmaker’s talents, but this movement had higher ambitions. It had to reconnect people to how things work.

The Big Crown ProPilot X Caliber 115 lays bare its inner workings. Nothing is hidden. Even the barrel at 12 o’clock is skeletonized so you can see the extended mainspring. Winding the crown, you watch on as the mainspring coils tighter… and tighter… until it’s fully wound and ready to deliver 10 days of uninterrupted power.

Caliber 115 is a hand-wound movement operated through the watch’s single crown. When fully wound, the movement will deliver 10 days of power – most mechanical watches run for around two days. This exceptional, 240-hour power reserve is fueled by a mainspring coiled in a single oversized barrel, visible at 12 o’clock. The power reserve is displayed through an Oris-developed and patented non-linear power reserve indicator at 3 o’clock that shows the power remaining with ever greater accuracy as the time to wind the watch approaches.

Case:
Material: Multi-piece titanium case
Size: 44.00 mm
Top Glass: Sapphire, domed on both sides, double-sided anti-reflective coating
Case Back: Titanium, screwed, see-through sapphire glass
Operating Devices: Titanium screw-in security crown
Water Resistance: 10 bar

Movement:
Movement: Hand winding 10-day power reserve, skeleton developed by Oris
Number: Oris 115
Dimensions: 34.00 mm, 15”’
Functions: center hands for hours and minutes, subsidiary second at 7:30 h, non-linear power reserve indication at 3 h, fine timing device and stop-second
Winding – Hand winding
Power Reserve: 240 hrs
Vibrations: 21’600 A/h, 3 Hz
Jewels: 38

Dial:
Material: Skeleton Dial
Luminous Material: Indices and hands Superluminova BG W9

Bracelet:
Material: Multi-piece Titanium metal bracelet, folding clasp

Oris Style #: 01 115 7759 7153-SET7 22 01TLC