100-02-25-05-50Ref

The Glashütte Original Senator Perpetual Calendar blends complex mechanical engineering with a calm visual style. Its caliber 100-02 movement drives the perpetual calendar functions, which are presented via dial windows including the trademark 'big date' and a small leap year indicator positioned beneath the 12 o'clock logo. Reference 100-02-25-05-01 comes with an alligator strap and pin buckle, 100-02-25-05-05 with an alligator strap and folding clasp, and 100-02-25-05-50 with an alligator strap and short folding clasp.