The ETA 2370 is a classic manual-wind movement introduced by ETA in the early 1950s, marking a pivotal point in Swiss watchmaking history. It served as the direct forerunner to the famous ETA 2390 series and remains a favorite among vintage watch enthusiasts for its robust construction and elegant design.
Key Specifications
Size: 11 1/2”’ (approximately 25.5 mm diameter)
Height: 4.15 mm
Frequency: 18,000 vibrations per hour (A/h)
Lift Angle: 52.23°
Jewels: 17
Power Reserve: 49 hours
Escapement: Swiss pallet lever
Shock Protection: Incabloc
Notable Features
Indirectly driven hands via the third wheel pinion, allowing for a larger balance and mainspring barrel
Yoke winding system for smooth manual winding
Glucydur screw balance for high precision
Long regulator arm for fine frequency adjustment
Hack feature (stops seconds hand when setting time)
Historical Context
The ETA 2370 was among the first movements to feature modern construction techniques, such as indirectly driven hands and a solid 11 1/2 ligne layout. Its design set the stage for later ETA calibers and contributed to the company’s reputation for reliability and precision.
Usage and Legacy
Predominantly used in the 1950s and 1960s, the ETA 2370 powered a variety of classic watches. Its solid build, Incabloc shock protection, and beautiful Glucydur balance make it a sought-after movement for restoration and collection.
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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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