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The Omega 3220 Hour Counting Wheel is a genuine OEM component for the Calibre 3220 automatic chronograph movement. This precision steel wheel is responsible for driving the 12‑hour totalizer sub‑dial (6 o’clock position), ensuring accurate long‑time elapsed measurement. As an original factory part, it is the definitive replacement for a worn, chipped or damaged hour counting wheel.
Genuine Omega OEM part – 100% authentic, factory‑fresh.
12‑hour counter driver – drives the hour totalizer sub‑dial at 6 o’clock.
Precision steel construction – durable, wear‑resistant.
Drop‑in replacement – exact fit for Calibre 3220; no modification required.
| Parameter | Value |
|---|---|
| Compatible Caliber | Omega 3220 |
| OEM Part Reference | 35.030 |
| Component Type | Hour counting wheel (12‑h counter) |
| Material | High‑grade steel |
| Movement Data (3220) | 30.0 mm diameter, 6.5 mm height, 47 jewels, 28,800 vph (4 Hz), 40 h power reserve |
| Base Caliber | ETA 2892‑A2 + Dubois‑Dépraz 2020 chronograph module |
| Condition | Brand new, genuine OEM |
| Origin | Swiss made |
Direct replacement for a worn, chipped or damaged original hour counting wheel during full service of Omega Calibre 3220.
Suitable for Omega Speedmaster Reduced references (3539.31, 3510.50, 3815.72.55, 3836.70.36, etc.) and other 3220‑powered chronographs .
Professional watchmaking use; replacement requires disassembly of the chronograph module and correct lubrication.
Q1: Is this a genuine Omega part?
Yes, it is a 100% authentic, Swiss‑made Omega OEM component.
Q2: Which calibers is this hour counting wheel compatible with?
It is designed for the Omega Calibre 3220. The same wheel is also used in calibres 1138, 1140, 1141 and 1143, which share the same chronograph module architecture .
Q3: What are the signs that the hour counting wheel needs replacement?
Common symptoms include the hour counter not advancing, erratic jumping, sticking, or visible tooth damage under magnification.
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