CALIBRE 740

Introduction and Launch: The Rolex calibre 740, introduced in 1945, was a groundbreaking movement that set new standards in horology. This automatic, chronometer-certified calibre was the first to combine self-winding functionality with a date window on the dial, debuting in the iconic Datejust. Its innovation not only enhanced convenience but also laid the foundation for future Rolex advancements, solidifying the brand’s reputation for precision and reliability.

Technical Specifications

Jewels:
18 Jewels
Power Reserve:
No information available
Beat Rate:
Operating at 18,800 vibrations per hour (2.5Hz)
Movement:
Self-Winding mechanical movement
Escapement:
Calibre 740 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:
Monorex
Hairspring:
Breguet Hairspring
Certification:
NA

Design and Features

Hands Configuration:
Hours, minutes, seconds and date window at 3 o'clock

Watches with this Calibre

Rolex Oyster Date
Back to List