Around for a quarter-century, the Opus architecture has been thoroughly updated. Its new geometry combines a 41-millimetre diameter with shorter lugs hugging the wrist more comfortably.
The mechanical clarity of the Opus Chronograph is achieved by carefully paring away all superfluous material, leaving nothing but a filigreed skeleton. The dial may be scarcely there after the careful and ingenious skeletonising process – but nevertheless the blue and silver subdial perimeters make a great impression.
Screw-down case back with satin finish and flat sapphire crystal
Diameter in mm
Height in mm
Partly polished, partly with vertical satin finish
Polished screw-down bezel with side knurling and full thread. Curved, non-reflecting sapphire crystal.
Caliber C. 741 S, automatic, skeletonized
4 Hz 28,800 A/H
Power reserve in hours
Number of jewels
Skeletonized, galvanic blue and silver
Central hours and minutes, small seconds, central chronograph seconds, 30-minute counter, 12-hour counter, analog date