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The ETA 2846/2834/2836-2543 Movement Intermediate Date Wheel is a genuine Swiss-made component for the ETA 2834, 2836, and 2846 automatic movement families. As a key transmission component in the calendar module, this intermediate date wheel smoothly transfers power from the date quick-set mechanism to the date jumper, enabling precise and instantaneous date changes. As an OEM part, it offers watchmakers a reliable solution to restore the calendar function, ensuring accurate date alignment and smooth date-advance operation.
Genuine ETA part – authentic Swiss-made component for ETA 2834, 2836, and 2846 calibers
Calendar mechanism component – transmits power from the date quick-set mechanism to the date jumper
Critical for date function – enables precise and instantaneous date changes
Direct replacement – drop-in replacement for worn or damaged intermediate date wheels
Precision-engineered – manufactured to ETA’s original specifications
Part Number: 2834/2836/2846-2543 / 2543
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 intermediate date 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 2543), made in Switzerland. It is listed in official ETA parts documentation for the 2834, 2836, and 2846 calibers.
2. Which movements is this intermediate date wheel compatible with?
This intermediate date wheel 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 intermediate date wheel?
The intermediate date wheel is part of the calendar module that transmits power from the date quick-set mechanism to the date jumper. This enables precise and instantaneous date changes, typically occurring at midnight.
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