Grail Watch Reference
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Complications
24 Hour Hand
Chronograph
-2-Button
-3-Button Chronograph
-Column Wheel Chronograph
--6-Column Chronograph
-Split Seconds Chronograph
-Vertical Clutch Chronograph
Date
-Instant Date Change
-Quick Date Correction
GMT Hand
-Independently-Adjustable 12 Hour Hand
Hacking Seconds
Hand Winding
Hands
12 Hour Chronograph Hand at 6:00
15 Minute Chronograph Hand at 3:00
30 Minute Chronograph Hand at 3:00
Central 24 Hour Hand
Central 60 Second Chronograph Hand
Central Hour Hand
Central Minute Hand
Central Seconds Hand
Central Split Second Chronograph Hand
Date Window at 3:00
Date Window at 4:30
Small Seconds Hand at 9:00
Brand
Breitling
Seiko
-Grand Seiko
-Shizukuishi Watch Studio
Winding
Automatic
-Central Rotor Automatic Winding
Hand winding
Regulators
Production Periods
2000s
2010s
2020s
Frequency
28,800 A/h
36,000 A/h
Anti-Shock
Diashock
Jewels
47
Balance Mount
Balance Bridge
Balance Cock
-Balance Cock Counter-Clockwise
Back-Side Features
-Balance at 12:00
-Balance at 4:30
Central Rotor
-Column Wheel at 10:30
B01
B02
B03
B04
B06
B09
B12
Seiko 9SA5
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