SPHERICAL OVERLAY TYPE (N, 2N)
Used as supports for balance shafts, as well as axial movement limiters.
Manufactured from material: Ruby-5, Ruby-10, and also available upon
customer request.
Upon customer request, 2N overlay stones with a height tolerance of N down
to minus 0.02 mm are produced for watches with shock-resistant and oil
retaining devices.
We can also produce items of other sizes according to the customer's drawing.
