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The Horotec MSA03.673 is a genuine Swiss‑made precision tool for adjusting the balance screws of the Omega Calibre 3303 movement and similar calibres. The tool features a square‑shaped tip designed to fit the balance wheel timing screws, allowing fine rate regulation. Brand new in original packaging.
Genuine Horotec – Swiss made, high precision.
Square tip – specifically for Omega 3303 balance screws.
Fine rate adjustment – enables precise chronometer regulation.
Durable construction – long tool life.
Essential for movement servicing.
| Parameter | Value |
|---|---|
| Model | Horotec MSA03.673 |
| Function | Balance regulating tool (balance screws) |
| Tip shape | Square |
| Compatible calibers | Omega 3303 and similar |
| Origin | Swiss made |
| Condition | Brand new, original packaging |
Adjusting balance wheel timing screws on Omega Calibre 3303.
Suitable for other calibres using similar square‑head balance screws.
Professional watchmaking and service centres.
Q1: Is this a genuine Horotec tool?
Yes, genuine Swiss‑made Horotec, brand new.
Q2: Which calibres does it fit?
Omega 3303 and similar movements with square balance screws.
Q3: What is the tip shape?
Square, designed to engage Omega 3303 balance timing screws.
Fast worldwide shipping within 3 business days.
Competitive pricing on Seiko/Hattori calibers.
3,000+ watch movements and parts in stock.
Trusted by watchmakers worldwide.
Personalized sourcing support via [email protected] or WhatsApp +86 18620212114.









