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The ETA 2846/2834/2836-2556 Movement Date Indicator Driving Wheel is a genuine Swiss-made component for the ETA 2834, 2836, and 2846 automatic movement families. As a key part of the calendar mechanism, this driving wheel transmits power from the date corrector to the date indicator ring, enabling precise and reliable date changes. This brand new original part is essential for watchmakers restoring proper calendar function when the original driving wheel becomes worn or damaged.
Genuine ETA part – authentic Swiss-made component for ETA 2834, 2836, and 2846 calibers
Calendar mechanism component – transmits power from the date corrector to the date indicator ring
Critical for date function – enables precise and reliable date changes
Direct replacement – drop-in replacement for worn or damaged date indicator driving wheels
Precision-engineered – manufactured to ETA’s original specifications
Part Number: 2834/2836/2846-2556 / 2556
Article Number: 35 (for 2836-2)
Compatible Movements: ETA 2834, 2834-2, 2836, 2836-2, 2846
Movement Diameter: 25.6 mm (11½”’)
Movement Height: 5.05 mm – 2836-2
Jewels: 25 (2836-2), 21 (2846)
Frequency: 28,800 vph (4 Hz) – 2836-2; 21,600 vph (3 Hz) – 2846
Power Reserve: ~40 hours (2836-2), ~45 hours (2846)
Origin: Switzerland (ETA factory part)
Condition: Brand new
Service and overhaul of ETA 2834, 2836, and 2846 movements
Calendar mechanism repair – replacing worn or damaged date indicator driving wheels
Date function restoration – resolving date change issues
Suitable for professional watchmakers and experienced repair technicians
1. Is this a genuine ETA part?
Yes, this is a genuine ETA factory part (reference 2556), made in Switzerland. It is listed in official ETA parts documentation for the 2834, 2836, and 2846 calibers.
2. Which movements is this date indicator driving wheel compatible with?
This part is compatible with ETA 2834, 2834-2, 2836, 2836-2, and 2846 movements. These are 25.6 mm calibers with day/date complications, widely used in mid-range automatic watches .
3. What is the function of the date indicator driving wheel?
This driving wheel transmits power from the date corrector to the date indicator ring, enabling precise and reliable date changes, typically occurring at midnight. It is an essential component in the calendar module.
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