Grail Watch Reference
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Complications
Chronograph
-2-Button
-Cam Switching Chronograph
-Modular Chronograph
-Oscillating Pinion 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
Hand Winding
Hands
12 Hour Chronograph Hand at 6:00
12 Hour Chronograph Hand at 9:00
30 Minute Chronograph Hand at 3:00
30 Minute Chronograph Hand at 9:00
Central 24 Hour Hand
Central 60 Second Chronograph Hand
Central Hour Hand
Central Minute Hand
Central Seconds Hand
Date Window at 3:00
Date Window at 6:00
Day Window at 3:00
Small Seconds Hand at 12:00
Small Seconds Hand at 6:00
Brand
Bulova
ETA
-ESA
-Valjoux
Seiko
-Daini Seikosha
-Suwa Seikosha
Winding
Automatic
-Bi-Directional Automatic Winding
Battery
Hand winding
Regulators
Quartz
Stepper Motor
Tadpole Regulator
Tuning Fork
Production Periods
1970s
1980s
1990s
2000s
2010s
2020s
Frequency
16,384 Hz
21,600 A/h
28,800 A/h
300 Hz
32,768 Hz
360 Hz
Anti-Shock
Diashock
Incabloc Double-Cone
Jewels
12
17
23
25
7
Balance Mount
Balance Cock
-Balance Cock Clockwise
Back-Side Features
Balance
-Balance at 4:30
-Battery at 10:30
-Battery at 3:00
Tuning Fork
-Tuning Fork at 10:30
-Tuning Fork at 12:00
Daini Seikosha 39 Quartz Stream
Suwa Seikosha 03 Quartz Stream
Accuquartz 224
Accutron 219
ESA 9164
ESA 9210
ETA 7001
Seiko 3800A
Seiko 3802A
Seiko 3803A
Seiko 3819A
Seiko 3820A
Seiko 3862A
Seiko 3863A
Seiko 5216
Seiko 5246
Valjoux 7740
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