Automatic Chronograph movement: Manufacture Concepto, base exclusively modified for Edouard Koehn, 28,800 vibrations per hour (4Hz), 25 jewels, 60-hour power reserve, 262 components, Chronometer-grade regulating organ
Functions: Hours, minutes, small seconds at 9 o’clock, date by hand & moon phase indicator at 6 o’clock,
Chronograph: 60 seconds by central hand, instantaneous 30-minute counter at 3 o’clockCase: 316L stainless steel, 40.0 mm diameter
Water resistance: 50 meters
Thickness: 12.90mm without sapphire crystal, 14.10mm with domed “glass-box” sapphire crystal
Crystal: Double-sided anti-reflective domed sapphire “glass-box” type
Case back: Sapphire crystal
Limited editions: 50 pieces per style, individually numbered on the case back
Dials: Dune and ice blue with vertical satin finish and applied arabic indexes
Strap: Louisiana alligator leather with alligator-flank lining
Clasp: Stainless steel folding clasp, pin buckle available as an option
