Grail Watch Reference
A Reference Library for Watches from Grail Watch
Movement Database
Grail Watch Blog
The Watch Files Podcast
Reference Documents
1979 Citizen Movement Table
Seiko Blue Book Automatic Movement Chronology
Seiko Laurel Brochure
Seiko List of Basic and Derivative Calibres
About Grail Watch
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Complications
Power Reserve Indicator
Hands
Small Seconds Hand at 7:30
Brand
Bulgari
Winding
Automatic
-Micro-Rotor Automatic Winding
Hand winding
Regulators
Mobile Stud
Production Periods
2010s
2020s
Frequency
21,600 A/h
28,800 A/h
Anti-Shock
Jewels
26
28
31
Balance Mount
Balance Bridge
Back-Side Features
-Balance at 7:30
-Micro Rotor at 2:00
-Power Reserve Indicator at 2:00
BVL 128
BVL 138
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