The engagement of the oscillating pinion on the ETA 7750 is a topic of its own because it has a clutch mechanism for the chronograph that is not widely used […]

In a chronograph with an instantaneous or semi-instantaneous minute counter, the minute counter wheel is independent of the other gear trains of the watch and only has tension during the […]

The cleanliness and condition of the dial and crystal of the watch are extremely important. These areas are constantly viewed by the owner and are the first and sometimes only […]

We often focus on the watch movement, but the case and bracelet are just as important. The case and bracelet should always be thoroughly cleaned before returning the watch to […]

When replacing the power cell in an electric watch, it is extremely important to pay attention to the battery well. The battery well often provides direct access to the gear […]

When cutting and preparing a stem to be fit to a crown, the stem must be handled in a way that no damage is done, especially to the threads, hubs, […]

The barrel complete with mainspring is the power source for the watch, and its condition is very important. The barrel should be completely clean and free of any scratches or […]

Proper adjustment and handling of the escapement is absolutely critical to the function of the watch. It is quite complicated and many books have been written on the topic. We […]

The guard pin and fork horns are essential components for providing safe action of the escapement when the watch receives a strong shock. The escapement will function normally without them […]

The poising of balance wheels is typically performed at the factory. Re-poising of the balance wheel is often necessary when a balance staff is replaced or there are other changes […]