Inverted spring hinge concept

4.0 mm wide and 14.5 mm long

Made from nickel silver

Case assembled with two ISS screws

Interchangeable U-shaped mechanism

Mechansm made from stainless steel

Conical head screw system M1.4

Available either with minus or plus-minus screws

Matching parts with double action

Ideal for using temples of different exotic materials

No rocking thanks to 5 barrels

Optionally available with aluminium temple

Spring Protection System

Tested with 50.000 movements