Symmetry and skeletonization are two traits that should come to mind whenever Arnold & Son is mentioned, and the Tourbillon Chronometer No. 36 is certainly no exception. Drawing inspiration from the John Arnold pocket chronometer No. 1/36, which will mark its 240th anniversary in 2018, the Tourbillon Chronometer No. 36 is a commemorative creation leading up to the milestone year for the historically significant John Arnold chronometer.



Hours, minutes, small seconds

Manufacture Arnold & Son calibre, hand-wound, 33 jewels, diameter 37.8 mm, thickness 5.9 mm, power reserve 90 h, double barrel, 4 Hz / 28,800, COSC certified.

Movement Decoration
Nickel-silver and steel movement, 5N red gold treated bridges and main plate with Haute Horlogerie finishing: sand blasted bridges with chamfered and polished edges, 18k gold chatons, screws with bevelled and mirror-polished heads.

Tourbillon cage
Mirror-polished with hand-chamfered polished edges and circular satin-finished surfaces.

Sandblasted stainless steel case with dark grey DLC “Gunmetal” coating, diameter 46 mm, cambered sapphire with anti-reflective coating on both sides, see-through sapphire case back.

Inner bezel Rhodium treated with black indexes

Hand-stitched brown or black alligator leather

Water Resistance
30 m