Watch notching device

A watch spring for a first component, intended for the notching of the first component relative to a second component, the spring comprising:

• at least one first connecting element intended to interact with at least one second connecting element provided on a member of the first component so as to connect the spring and the first component,
• wherein the at least one first connecting element comprises at least one elastic connecting arm extending in a first direction intended to interact with the at least one second connecting element, the at least one first connecting element being intended to receive a force for driving the first component relative to the second component in the first direction or substantially in the first direction,
• wherein the first direction is orthoradial relative to an axis of rotation of the spring or the first direction is orthoradial relative to an axis passing through the center of gravity of the spring and the axis passing through the center of gravity of the spring being perpendicular or substantially perpendicular to the spring or to a plane in which the spring extends.