CALIBRE 1040

Introduction and Launch: The Rolex calibre 1040, introduced in 1954, is an automatic chronograph movement best known for powering the Rolex Tru-Beat. Its most distinctive feature is the jumping seconds hand, which moves in precise one-second increments rather than the typical sweeping motion. Designed for enhanced readability and accuracy, this innovation made the Tru-Beat particularly useful for scientific and technical applications requiring precise second-by-second measurements.

Technical Specifications

Jewels:
26 Jewels
Power Reserve:
Power reserve of approx 48 hours
Beat Rate:
Operating at 18,000 vibrations per hour (2.5Hz)
Movement:
Self-Winding mechanical Chronometer movement
Escapement:
Calibre 1040 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:
Kif A Anti-Shock System
Hairspring:
Breguet Hairspring
Certification:
Calibre 1040 is certified by the Official Swiss Chronometer Testing Institute (COSC) for precision and accuracy

Design and Features

Hands Configuration:
Hours, minutes and central seconds

Watches with this Calibre

Rolex Tru-Beat:
1020 / 65556 / 6558
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