Grail Watch Reference
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Complications
Chronograph
-Monopusher Chronograph
Date
-Instant Date Change
-Quick Date Correction
Day
-Bilingual Day Wheel
-Instant Day Change
-Quick Day Correction
GMT Hand
-Independently-Adjustable 12 Hour Hand
Hacking Seconds
Hands
30 Minute Chronograph Hand at 12:00
Central 24 Hour Hand
Central 60 Second Chronograph Hand
Central Hour Hand
Central Minute Hand
Central Seconds Hand
Date Window at 3:00
Day Window at 3:00
Small Seconds Hand at 6:00
Brand
ETA
-ESA
-Valjoux
Léonidas
Seiko
-Suwa Seikosha
Vénus
Winding
Battery
Hand winding
Regulators
Indexed
Quartz
Screwed Balance
Stepper Motor
Production Periods
1930s
1940s
1950s
1960s
1970s
Frequency
16,384 Hz
18,000 A/h
28,800 A/h
32,768 Hz
36,000 A/h
8,192 Hz
Anti-Shock
Jewels
7
Balance Mount
Balance Bridge
Balance Cock
-Balance Cock Clockwise
Back-Side Features
-Balance at 1:30
-Balance at 12:00
-Balance at 3:00
-Barrel at 10:30
-Battery at 10:30
-Battery at 3:00
-Battery at 6:00
ESA 9200
Seiko 3502
Seiko 35A
Seiko 3800A
Seiko 3802A
Seiko 3803A
Seiko 3819A
Seiko 3820A
Seiko 3823A
Seiko 3862A
Seiko 3863A
Seiko 3882A
Seiko 3883A
Valjoux 34
Valjoux 35
Venus 122
Venus 180
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