The Chronoswiss Sirius Flying — Regulator Open Gear offers an intriguing new twist on historical regulator design. The watch, Chronoswiss says, commemorates 35 years since German watchmaker Gerd-Rüdiger Lang founded the company in Munich in 1983, as well as 30 years since the release of the regulator model that defined the brand in 1988.shop now
It is available in two executions, both limited to 35 pieces: in a stainless steel case with a silver colored dial and a blue outer ring, and in a rose-gold case with a blue dial and a silver outer ring. On the outer ring is a minutes scale with the numeral “35” printed in red, standing out against the other numerals on the scale (white in the steel version, black in the rose gold).
The “Open Gear” moniker comes from the model’s partially openworked dial design, with front-mounted, skeletonized train wheel bridges, held by blued screws, supporting similarly skeletonized gears that are visible through the funneled subdials – hours at 12 o’clock and small seconds at 6 o’clock swept over by a large, central minutes hand. The dial’s visible bridges have been delicately angled and polished.
The dial itself has two levels, the lower one galvanized and embellished with a handguillochéd pattern and the upper one comprising the two funneled subdials and screwed bridges. The feuille hands are thermally blued and polished on the steel model and rhodium-plated and diamond-cut on the rose gold model; both have Super-LumiNova inserts. A tiny plaque with the limited edition number and “Atelier Lucerne” has been handapplied
to each dial. The 16-part case is 46 mm in diameter and 13.85 mm thick and features Chronoswiss’s emblematic onion crown and knurling on the case sides.
Sapphire crystals cover the front and back. Inside is the Chronoswiss Caliber C.299, with automatic winding, a stopseconds function and a 42-hour power reserve. Both versions of the watch have blue, hand-stitched alligator straps. Prices are CHF 7,880 for the steel model and CHF 6,400 for the rose-gold one.