The Omega 1116 watch movement was in use from 1955 to 1960 and features an excenter regulator for the stud carrier and a patented double-excenter winding mechanism with jewelled rollers. It incorporates a jewel-bearing rotor and an intermediate wheel that allows for a large balance and low profile while maintaining robustness. The placement of the seconds wheel can be either in the center or for a sub second without requiring additional modifications. This movement is automatic and includes a sub second function.