Power train

Mechanical watches have always been the most popular watches, but do you really have an in-depth understanding of the internal structure of mechanical watches? Today we will analyze this mysterious and complicated mechanical watch in detail.

There are many parts in the movement of a mechanical watch, so we will only pick the most important ones to explain here. First of all, let's look at a diagram as a comparison.

Power train (the source of the watch's timing)

1. In the power train of a mechanical watch, the most important part is the spring. The spring is contained in a barrel, which consists of the spring, the shaft and the barrel. The barrel is an elastic element that produces torque when it is coiled tightly, providing power for the operation of the watch.TUDOR Royal M28323-0001 It can be said that all the timekeeping of a mechanical watch originates from the spring.

2. In addition to manual winding, there is an auxiliary winding system, the automatic tourbillon, which is used in daily wear. The automatic tourbillon is usually made of a denser metal, generally weighing between 2-4 grams, and is used to drive and wind the watch.

Drive train (driving parts of the watch)

The barrel wheel of the power train transmits power to the second wheel (pinion), which is then transmitted to the escapement via the third and fourth wheels.

Escapement (Guarantee of timekeeping)

The escapement includes the escapement wheel and the escapement fork, and the escapement wheel drives the escapement fork to perform locking, transmission and release actions. The "ticking" sound of a mechanical watch is produced by this. The escapement transfers the energy provided by the prime mover system to the balance-spring system at regular intervals. Therefore, a good or bad escapement will directly affect the accuracy of a mechanical watch.

Balance-spring system (basic guarantee of timekeeping)

The hairspring cannot directly power the hands, but releases the power of the hairspring evenly over a long period of time through the balance-spring system. Regulating the speed of power, the balance spring in the mechanical watch acts like a spring, constantly absorbing and releasing kinetic energy in the process of swinging, so that the balance wheel continues to swing, and regulates the speed while releasing the clockwork gear system, ultimately forming the accuracy and stability of timekeeping, which is the basic guarantee of timekeeping.

The balance spring structure is categorized into two types: non-calibrated and calibrated. The calibrated balance spring structure changes the effective length of the balance spring by adjusting the position of the speed,TUDOR Black Bay 39 M79660-0001 thus changing the vibration period; the calibrated balance spring structure changes the rotational radius of the balance wheel by adjusting the in and out of the screws evenly distributed on the balance wheel, or by adjusting the position of the rotatable weights placed on the balance wheel, so as to change the vibration period. Our movement has a calibrated hairspring.

The diagram below shows the edges of a non-calibrated balance spring.

Dial Indication System

The dial display system is interfaced with the main drive train, the most important of which are the hour, minute and seconds wheels, as well as the calendar display system. The working principle of this system is relatively simple.

Manual winding system

The winding toggle system has many parts and consists of two main parts: manual winding and automatic winding.

1. Manual winding generally consists of a shank head, a shank shaft, a vertical wheel, a clutch wheel, a clutch lever, a clutch lever spring, a gear puller, a pressure spring, a pawl wheel, a spanning wheel, an hour wheel, a minute wheel, a large steel wheel, a small steel wheel, a pawl and a pawl spring, etc. The automatic winding system, on the other hand, consists of a number of parts.

2. The automatic bar loading system, on the other hand, consists of a weight, a weight support,TUDOR Glamour Double Date M57103-0005 an eccentric shaft, a ball, an automatic rocking plate, a ratchet wheel, a pawl and an automatic upper clamping plate.

These basic parts are already very complicated, which shows that mechanical watches are actually very delicate. The more high-end and expensive watches need to be carefully taken care of, the upper bar should be carried out slowly, and violent vibration should be avoided as much as possible when wearing. Wearing a watch with care is saving money in disguise.


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