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The ETA 2824/2834/2836-415 Ratchet Wheel is a genuine Swiss-made component for the ETA 2824, 2834, and 2836 automatic movement family. As a critical part of the automatic winding system, the ratchet wheel transfers torque from the mainspring barrel during the winding process, ensuring reliable energy transmission within the movement according to factory specifications . This brand new original part is essential for watchmakers restoring proper winding function and power reserve when the original ratchet wheel becomes worn or damaged.
Genuine ETA part – authentic Swiss-made component for ETA 2824/2834/2836 calibers
Winding system component – transfers torque from the mainspring barrel during the winding process
Essential for power reserve – ensures reliable energy transmission for the ~38-hour power reserve
Gold-plated finish – features a distinctive gold-colored finish for durability and corrosion resistance
Direct replacement – drop-in replacement for worn or damaged ratchet wheels
Part Number: 2824/2834/2836-415 / 415
Article Number: 20
Compatible Movements: ETA 2824-2, 2834-2, 2836-2, 2801, 2804, 2816, 2821, 2826, 2828, 2930
Finish: Gold-plated
Movement Diameter: 25.6 mm (11½”’)
Movement Height: 4.60 mm – 2824-2
Jewels: 25
Frequency: 28,800 vph (4 Hz)
Power Reserve: ~38 hours
Origin: Switzerland (ETA factory part)
Condition: Brand new
Service and overhaul of ETA 2824/2834/2836 family movements
Winding system repair – replacing worn or damaged ratchet wheels
Power reserve restoration – ensuring reliable energy transmission
Suitable for professional watchmakers and experienced repair technicians
1. Is this a genuine ETA part?
Yes, this is a genuine ETA factory part (reference 415), made in Switzerland. It is listed in official supply catalogs for ETA 2824/2834/2836 calibers .
2. Which movements is this ratchet wheel compatible with?
This ratchet wheel is compatible with a wide range of ETA calibers including 2824-2, 2834-2, 2836-2, 2801, 2804, 2816, 2821, 2826-2, 2828, and 2930 . The ETA 2824-2 is a 25.6 mm automatic caliber widely used in mid-range automatic watches.
3. What is the function of the ratchet wheel?
The ratchet wheel is part of the winding system that transfers torque from the mainspring barrel during the winding process, ensuring reliable energy transmission within the movement according to factory specifications . It features a distinctive gold-plated finish for durability .
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