When you love mechanical watches, do you begin your critique of a new piece looking at the case front or back? The new ProPilot X Calibre 400 is designed to inspire joy no matter what angle you come at it from.

The dial-side is defined first by its 39mm titanium case. The taut, angular lines of the aviation-inspired form are satin and sand- blasted, giving the watch its raw, technical look, and complemented by the familiar ProPilot bezel and a muscular, sculpted titanium bracelet. The oversized crown is also titanium, and flanked by protectors.
Beyond, the launch collection offers a choice of three dial colours: grey, blue and salmon. This is a fresh, expressive palette, chosen to augment the case’s dynamic proportions – and to bring life and colour to your wrist.
It’s the heir to a pilot’s watch legacy going back more than 100 years, but before all that, the ProPilot X Calibre 400 has been designed to celebrate the joy of mechanics
And then there’s the view from the other side. The watch’s titanium case back and open sapphire crystal frame Oris Calibre 400, our in-house five-day automatic.

As with all Calibre 400 Series movements, it’s accurate to -3 to +5 seconds a day, within chronometer certification standards, even after it’s been exposed to the sort of magnetic fields we’re surrounded by every day. This base calibre version has a sweep central seconds hand and a date at 6 o’clock.

All Calibre 400 Series watches carry 10-year warranties and 10-year recommended service intervals, and that applies to the ProPilot X Calibre 400, too. Calibre 400 Series movements have more than 30 non-ferrous and anti-magnetic parts, and were developed to minimise friction and wear-and-tear – the winding rotor uses a slide bearing system, for example – so that we can confidently give the watches their class-leading warranties.

The ProPilot X Calibre 400 follows in a long line of Oris pilot’s watches going back to the early 1900s, but its power lies beyond its associations: it’s a mechanical joy machine.

Oris ProPilot X Calibre 400
Case Multi-piece titanium case with satin and sandblasted finishes
Size 39.00 mm
Dial Grey, blue or salmon
Luminous material Indices and hour and minute hands with Super-LumiNova®
Top glass Sapphire, domed on both sides, double-sided anti-reflective coating
Case back Titanium with satin and sandblasted finishes, screwed, see-through sapphire glass
Operating devices Titanium screw-in security crown with protection
Bracelet Titanium with folding clasp with Oris-patented ‘LIFT’ system
Water resistance 10 bar (100 m)
Movement
Number Oris Calibre 400
Functions Centre hands for hours, minutes and seconds, date window at 6 o’clock, date corrector, fine timing device and stop-second Accuracy -3/+5 seconds a day (within COSC tolerances)
Extra features Highly anti-magnetic Winding Automatic
Power reserve 120 hours
Warranty Extended to 10 years with MyOris sign-up. Applies to watch and movement. 10-year recommended service intervals. Five- year recommended water-resistance check
Swiss retail price CHF 3,900 Available April 2022