Description:

• Self-winding chronograph movement DATOMATIC, manufacture movement
• Shock-resistant balance with four regulation screws
• Precision adjustment with cam and whiplash spring
• Central rotor with platinum segment, unidirectional winding
• Balance bridge engraved by hand

Functions:

• Hours, minutes
• Day of week at 9 h
• Big date at 3 h
• Small seconds with stop-seconds at 6 h
• Chronograph with chrono seconds hand and central 60-minutes counter

Data:

• ∅ 34.9 mm, H 8.4 mm
• 28,800 A/h
• 52 jewels, including 4 in screwed gold chatons
• 516 components
• Power reserve 50 hours