The ETA A07.111 is a robust automatic mechanical movement from ETA’s Valgranges family, designed for larger watches. Produced from around 2004 to 2021, it offers reliable performance with a date complication, making it popular among brands seeking oversized calibers.
Key Specifications
Diameter: 36.6 mm (16½ lignes), ideal for big-case watches over 42mm.
Height: 7.9 mm, balancing power reserve with wearability.
Jewels: 24, reducing friction in critical pivots.
Frequency: 28,800 vph (4 Hz), for smooth seconds hand sweep.
Power Reserve: Approximately 48 hours when fully wound.
Design and Features
This self-winding caliber uses a central rotor for bidirectional winding, ensuring efficient energy storage. It includes a small seconds subdial at 6 o’clock and a date window, typically at 3 o’clock, with standard hacking for precise time-setting. The Valgranges line emphasizes industrial production scalability, succeeding ETA’s Unitas movements like the 6497 while addressing demand for chronometer-grade reliability in modern contexts.
Applications and Legacy
Found in various luxury and tool watches, the A07.111 powers models needing substantial presence without quartz alternatives. Variants like A07.161 add day-date, but the base model prioritizes simplicity. Phased out post-2021 amid Swatch Group restrictions, it remains serviceable with available spares for enthusiasts. Its ETA 7750-inspired architecture ensures longevity in repairs.
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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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