ETA 1152 Watch Movement: A Reliable Classic
The ETA 1152 is a manual-wind mechanical movement introduced around 1955 by ETA SA, renowned for its precision and durability in mid-century Swiss timepieces. Measuring 10.5 lignes (23.7mm diameter) with a slim 4.5mm height, it powers vintage dress watches and remains sought after by collectors and restorers for its straightforward design.
Key Specifications
Type: Manual wind, three-hand with sub-seconds.
Jewels: 15 to 21, depending on configuration (typically 17-21 for higher-grade versions).
Frequency: 18,000 vibrations per hour (vph) for smooth sweeping seconds.
Power Reserve: Approximately 42-46 hours when fully wound.
Lift Angle: 52 degrees, optimizing energy efficiency.
Height/Diameter: Ultra-thin at 4.5mm x 23.7mm, ideal for slim cases.
Design and Features
Crafted with a lever escapement and mono-metallic balance, the 1152 emphasizes reliability over complexity. It features Incabloc shock protection in later variants, ensuring resilience against daily wear. The movement’s simple brass plates and Etachron regulator allow easy servicing, a boon for watchmakers handling vintage repairs. Finishes often include perlage or Geneva stripes on visible components.
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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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