Device for measuring a horological component

A device for measuring a horological component, wherein the device comprises:

• (a) a measurement cell comprising:
• (i) a measurement channel extending in a longitudinal direction and filled with a liquid, capable of displacing a horological component;
• (ii) outer faces that are flat and parallel pairwise,
• (b) at least two optical systems arranged opposite at least a part of the outer faces of the measurement cell at a measurement zone of the measurement cell, each of the optical systems comprising:
• (iii) a light emitter suitable for emitting a collimated light in a predefined wavelength or a defined polarization in the direction of the measurement channel through an outer face of the measurement cell, so as to be able to illuminate a horological component present and being displaced in the measurement channel in the measurement zone, and
• (iv) an optical sensor associated with the light emitter for receiving at least a part of the light emitted by the light emitter,
• the at least two optical systems comprising light emitters operating in different respective wavelengths or polarizations,
• (c) a driver unit, capable of driving the optical systems and of processing digital data obtained from the optical systems, configured to implement calculations of at least one dimension of a horological component.