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Complications
Chronograph
-2-Button
-Cam Switching Chronograph
-Modular Chronograph
-Vertical Clutch Chronograph
Date
-Quick Date Correction
Day
-Quick Day Correction
Hacking Seconds
Hands
12 Hour Chronograph Hand at 6:00
30 Minute Chronograph Hand at 9:00
Central Hour Hand
Central Minute Hand
Central Seconds Hand
Date Window at 3:00
Day Window at 3:00
Small Seconds Hand at 12:00
Brand
-ESA
Winding
Battery
Regulators
fixed-coil contact-controlled
Tuning Fork
Production Periods
1960s
1970s
Frequency
18,000 A/h
28,800 A/h
300 Hz
Anti-Shock
Jewels
12
13
7
Balance Mount
Balance Bridge
Balance Cock
Back-Side Features
Balance
-Balance at 12:00
-Balance at 3:00
-Battery at 3:00
Tuning Fork
-Tuning Fork at 10:30
Ebauches SA Swissonic
ESA Dynotron
ESA Mosaba
ESA 9160
ESA 9162
ESA 9164
ESA 9200
ESA 9210
Landeron 4750
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