The ETA 1170 Watch Movement: A Timeless Classic
The ETA 1170 is a compact, manual-wind mechanical movement renowned for its reliability in ladies’ watches from the mid-20th century. Produced around 1955 by ETA SA Manufacture Horlogère Suisse, it measures 17mm in diameter (about 7.75 lignes), making it ideal for smaller cases.
Key Specifications
Size and Jewels: 17mm diameter with 17 jewels for smooth operation and reduced friction.
Beat Rate: 18,000 vibrations per hour (A/h), delivering a sweeping center seconds hand for elegant motion.
Power Reserve: Approximately 39 hours when fully wound, suitable for daily wear.
Escapement: Pallet lever design, standard for precision and durability in ETA’s lineup.
Design and Features
This hand-winding caliber features direct center seconds, emphasizing simplicity and efficiency without automatic winding complications. It belongs to ETA’s early postwar family, equivalent to Eterna’s Cal. 1195 in some variants, showcasing shared Swiss horological heritage. Collectors value its slim profile and robust construction, often found in vintage dress watches from brands like Omega or Tissot.
Historical Context
Introduced in the 1950s, the ETA 1170 reflects post-WWII innovation, prioritizing affordability and serviceability for the growing ladies’ market. Parts like balance staffs and screws remain available today, aiding restoration. Its manual wind appeals to purists seeking mechanical purity.
Collectibility and Maintenance
Vintage ETA 1170 movements are prized for affordability and easy servicing, with spares supporting long-term preservation. Regular oiling and cleaning ensure decades of accuracy. For enthusiasts, it exemplifies ETA’s foundational role in Swiss watchmaking.
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Watch Parts Enquiry
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Stem, Crown, Hands & Spares might be available for this movement.
Email us for rate and availability: [email protected]
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