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Replacement of Balance Staff
CUSTOMER SERVICE STANDARD
This standard provides information on the minimum work to be undertaken for the following service procedure:
Replacement of Balance Staff
This procedure is generally carried out in conjunction with the normal service procedure for a mechanical watch - i.e. Cleaning, repairing and adjustment of movement.
1. The balance staff in a watch must be replaced if it has broken or worn pivots. Movement of the watch must be clearly identified and availability of a replacement staff obtained.
2. The new original replacement part is procured or customer advised of other options - i.e., non- standard replacement or local manufacture of new staff.
3. The balance assembly is dismantled into its separate components.
4. The worn/damaged balance staff is removed from its riveted position in the balance wheel.
5. The new balance staff
is fitted to the balance, procedure includes:
- Rivet in new staff and ensure secure
- True balance wheel * Fit roller (correctly aligned)
- Poise balance
- Fit balance spring (correctly aligned)
6. The balance is fitted to the movement and the balance and spring adjusted to ensure uniform performance in all positions. Manufacturing specifications will determine limits of performance.
7. Finishing:
- Timekeeping performance evaluated.
- Running assessed over 24 hours.
8. Delivery procedure:
- Watch set (time & date).
- Customer advised of detail of service and performance.
- Warranty provisions explained.
NB: Limited warranty on small repairs, (no warranty on functioning of movement) NB: An inspection report will be provided on any defects, which may impair the performance of the watch. The Watchmaker may elect NOT to undertake the service if work can not be completed to WCA Standards.
