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The Omega 3303 Movement Second Wheel At 9 (72233033503004) is a genuine original replacement component designed for the Omega Caliber 3303 automatic chronograph movement. This second wheel drives the small seconds subdial located at the 9 o’clock position, a hallmark of the 3303’s tri-compax layout . Manufactured to Omega’s factory specifications, it is intended for professional watchmakers during movement servicing, repair, or restoration.
Genuine Omega part – authentic original component for Caliber 3303
Drives 9 o’clock subdial – powers the small seconds hand at 9 position
Precision-engineered – manufactured to Omega’s factory specifications
Critical chronograph component – essential for proper movement function
| Parameter | Detail |
|---|---|
| Part Number | 72233033503004 |
| Compatible Movement | Omega Caliber 3303 |
| Part Type | Second wheel (small seconds at 9) |
| Movement Diameter | 27.0 mm |
| Movement Height | 6.85 mm |
| Jewels | 33 |
| Frequency | 28,800 vph (4 Hz) |
| Power Reserve | 55 hours |
| Chronograph System | Column-wheel |
| Origin | Switzerland (Omega factory part) |
| Condition | Brand new |
Service and overhaul of Omega Caliber 3303 movements
Replacement for worn or damaged second wheels during repair
Restoration of Speedmaster Broad Arrow, Seamaster Chronograph, and other 3303-powered models
Suitable for professional watchmakers and authorized service centers
1. Is this a genuine Omega part?
Yes, this is a genuine Omega factory part (reference 72233033503004), manufactured in Switzerland. It is not an aftermarket or generic component.
2. Which movement is this second wheel compatible with?
This second wheel is specifically designed for the Omega Caliber 3303 movement. The 3303 was co-developed with Frederic Piguet (based on the Piguet 1285) and features a column-wheel chronograph with a tri-compax layout .
3. What is the function of the second wheel in the 3303 movement?
This second wheel drives the small seconds subdial at 9 o’clock, one of the three subdials on the 3303’s tri-compax layout (along with the 30-minute counter at 3 and 12-hour counter at 6) .
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