The Manufacture Rodolphe Cattin Witness One is an openworked tourbillon with bevelled and diamond-polished hands, finely sandblasted surfaces and black gold-treated bridges. A 60-second tourbillon displays the seconds at 6 o’clock. A three-arm “octopus spring” operates the pull-out piece. A click and lever govern the movement, which is visible through the caseback.

Powering the Witness One is hand-wound tourbillon caliber MRC800 with 19 jewels, a frequency of 21,600 vph (3Hz), lever escapement, skeletonised plate and bridges, 72-hour power reserve. Functions include hours, minutes and seconds (tourbillon). The 45 mm round case has distinct oversized lugs and a large ball-like crown – available in steel, 18K white gold or 5N 18K pink gold.

Cambered anti-reflective sapphire crystal and transparent caseback. Water-resistant to 30 meters. Polished and blued facetted hands. Black alligator with folding clasp matching the case.

Posted by:Jason Pitsch

Jason Pitsch is the Founder of Professional Watches. He appreciates good craftsmanship in everything from architecture to automobiles to cameras to clothing. Yet his focus for the past decade has remained consistent on covering just one type: watchmaking.