CALIBRE 420

Introduction and Launch: The Rolex Calibre 420, introduced around 1941, is a testament to the brand's early dedication to mechanical precision and durability. As one of Rolex's first self-winding movements, it features a classic design with a round shape, a small seconds display, and a reliable manual winding mechanism. Its construction and finishing reflect the brand's hallmark precision, making it a significant part of Rolex's watchmaking legacy.

Technical Specifications

Jewels:
18 Jewels
Power Reserve:
No information available
Beat Rate:
Operating at 18,000 vibrations per hour (2.5Hz)
Movement:
Self-Winding mechanical movement
Escapement:
Calibre 420 features features a traditional Swiss lever escapement. It consists of a balance wheel, hairspring, pallet fork, and escape wheel. This mechanism not only regulates the energy release from the mainspring but also maintains the balance assembly at a consistent and precise rate
Anti-Shock:
No information available
Hairspring:
Breguet Hairspring
Certification:
No information available

Design and Features

Hands Configuration:
Hours, minutes and small seconds

Watches with this Calibre

No Information Available
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