REGULATION / ADJUSTMENT
Regulation / Adjustment refers to all the actions carried out on the Regulating organ and the Escapement (Distribution mechanism) in order to optimize the operation and, above all, the accuracy of the Movement and of the watch. Various methods, generally linked to the design of the movement, exist. It is commonly said that a “watch regulates well” when it is accurate.
ESCAPEMENT-MAKING (FINISHING) (Distribution mechanism)
Escapement-making (finishing) encompasses all the adjustment operations of the Escapement (Distribution mechanism). A good escapement-making (finishing) is essential for the proper functioning and timekeeping of the watch. The interactions between the different components of a Swiss lever escapement must be carefully regulated in a very precise order.
REGULATION / ADJUSTMENT (Regulating organ)
The term regulation/adjustment, as used in watchmaking and presented in this chapter, encompasses all the assembly and regulation/adjustment operations of theRegulating organ. The proper functioning and, above all, the accuracy of the watch depend on perfect mastery of each of these steps. It is important to note that regulation/adjustment applies only to Hairsprings (balance springs) made of an alloy of Steel. Hairsprings (balance springs) made of Silicon are pre-set at the time of manufacturing and cannot withstand any handling.
THE DAILY RATE CORRECTION
Many factors influence how well a watch runs. Thus, over the course of its life and various events, a watch may tend to run fast or slow. Fortunately, watchmakers have devised different ways to adjust the daily rate of a Movement.
Let us remember that if a watch runs fast, it is because the Frequency oscillation of its regulating organ is too high. Conversely, if it runs slow, it is because its frequency is too low.
Two methods can correct the frequency of the regulating organ: modifying the active length of the Hairspring (balance spring) and modifying the moment of inertia of the Balance.
THE PAIRING OF THE BALANCE AND THE HAIRSPRING
This method consists of pairing a Balance with the Hairspring (balance spring) that suits it best in order to achieve the optimal Frequency regulation possible. It applies to series production and requires great precision in the manufacturing of balances and hairsprings (balance springs).
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