Grail Watch Reference
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Complications
Chronograph
-2-Button
-Cam Switching Chronograph
-Modular Chronograph
-Vertical Clutch 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
12 Hour Chronograph Hand at 6:00
30 Minute Chronograph Hand at 9:00
Central 24 Hour Hand
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
Bulova
ETA
-ESA
IWC
Longines
Omega
Patek Philippe
Rado
Rolex
Seiko
-Suwa Seikosha
Winding
Battery
Regulators
Quartz
Stepper Motor
Tuning Fork
Production Periods
1960s
1970s
Frequency
16,384 Hz
28,800 A/h
300 Hz
32,768 Hz
360 Hz
8,192 Hz
Anti-Shock
Jewels
12
15
7
Balance Mount
Balance Bridge
Back-Side Features
Battery
Accutron 214
Accutron 218
Beta 21
ESA 9162
ESA 9164
ESA 9200
ESA 9210
Seiko 3502
Seiko 35A
Seiko 3800A
Seiko 3802A
Seiko 3803A
Seiko 3819A
Seiko 3820A
Seiko 3823A
Seiko 3862A
Seiko 3863A
Seiko 3870A
Seiko 3882A
Seiko 3883A
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