Indications:
Central hours and minutes
One-second chronograph hand at 10'clock
20-seconds chronograph hand at 2 o'clock
10-minutes chronograph hand at 6 o'clock
Dimensions:
Total diameter 34.4mm
Casing-up diameter 34.0mm
Overall height 5.6mm
Movement features:
Central mainspring driving through the barrel and the arbor 15-tooth,
Free-sprung balance with four adjusting weights
Anachron balance-spring
Mobile stud-holder
Pinned collet and stud
Three-position winding crown
Against the case, disengaged
Position 2, winding
Position 3, tiem-setting
Calibre: 1506
Characteristics:
Manual winding
100th-second chronograph
Gold movement
Balance:
Frequency: 21,600 v/h (3Hz)
Inertial: 11.0 mg/cm2
Angle of lift: 52%
Amplitude:
0h dial up: >300 degrees
24h dial up: > 240 degrees
Power reserve:
60 hours without chronograph.
30 hours, chronograph running.
Jewels: 49
Finish:
High grade
Circular stripes on the bridges
Circular-grained baseplate
Polished and bevelled screws
Pegs with rounded, polished ends
Bevelled steel-work with brushed surfaces