The ETA 2772 is a reliable mechanical automatic watch movement from the ETA 2700 series, produced between 1969 and 1982, with millions of units made.
Overview
This caliber evolved from the ETA 2770 base model, featuring a self-winding mechanism via a bidirectional rotor. It powers mid-range Swiss watches with hours, minutes, seconds, and date functions. Known for its robust gear train and standard ETA layout, the movement measures about 11.5 lignes (25.6mm diameter) and offers around 38-42 hours of power reserve.
Key Specifications
Type: Automatic, mechanical
Jewels: 25
Frequency: 21,600 vph (3 Hz)
Functions: Central seconds, date at 3 o’clock
Height: Approximately 5.25mm
Production Volume: Over 25 million units
Design Highlights
The ETA 2772 uses an indirect drive for hands via the third wheel on the dial side, with a large mainspring barrel for stable power. It includes common spare parts like the oscillating weight (1143), balance complete (721), and date corrector components, making servicing straightforward for professionals. Its predecessor status to modern ETA calibers underscores its influence on reliable workhorse movements.
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Watch Parts Enquiry
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Stem, Crown, Hands & Spares might be available for this movement.
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