Grail Watch Reference
A Reference Library for Watches from Grail Watch
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Complications
Date
-Date by Pointer
-Quick Date Correction
Day
-Day by Pointer
Hacking Seconds
Leap Year
Modular
Month
-Month by Pointer
Moon Phase
Perpetual Calendar
Year
Hands
Date Pointer at 3:00
Brand
Chronoswiss
Sellita
Tianjin
-Sea-Gull
Universal
Vaucher Manufacture
Winding
Automatic
-Central Rotor Automatic Winding
-Micro-Rotor Automatic Winding
-Uni-Directional Automatic Winding
--Counter-Clockwise Automatic Winding
Hand winding
Regulators
ETACHRON
Screw Regulator
Variable Inertia Blocks
Production Periods
1940s
2010s
2020s
Frequency
18,000 A/h
21,600 A/h
28,800 A/h
Anti-Shock
Incabloc Double-Cone
Jewels
15
17
24
29
30
31
Balance Mount
Balance Cock
-Balance Cock Clockwise
-Balance Cock Counter-Clockwise
Back-Side Features
-Balance at 12:00
Central Rotor
Micro Rotor
-Micro Rotor at 1:30
Chronoswiss C.127
ST2503
SW295-1
SW295-1 M
Universal 291
VMF 5401/50
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