With the Flying Grand Regulator Open Gear Retrograde Second, ReSec for short, for the first time in its history, Chronoswiss presents a regulator timepiece in a striking 44mm case with automatic movement. The dials are intricately guilloched by hand and all models are limited to 50 timepieces.
Screw-down case back with satin finish and sapphire crystal
Diameter in mm
Height in mm
Partly polished, partly with vertical satin finish, onion crown
Polished screw-down bezel with full thread and side knurling with curved, double coated anti-reflective sapphire crystal
Caliber C.301, automatic
4 Hz ( 28800 A/h )
Power reserve in hours
Number of jewels
Elaborate 42-part construction on two levels: bottom level hand-guillochéd, upper level featuring screwed-on skeletonized train wheel bridges and funnel-like construction for hour display, as well as a retrograde seconds display and cylinder shape Super-LumiNova indexes.
Off-centre hours at 12:00 (featuring "open gear" design), central minutes, retrograde seconds at 6:00
Design of hands
Thermally blued and polished, or lacquered ; with Super-LumiNova inlays and tips
Shape of hands
Strap & buckle
Hornback crocodile leather, hand-sewn
Type of buckle
Water resistance in atm
10 bar( 100m )
Limited to 50 timepieces only; hand-guilloched dial. Technically sophisticated dial design featuring "open gear" mechanism and retrograde seconds display.