100-02-25-12-04Ref

The Glashütte Original Senator Perpetual Calendar fuses a complex movement with a balanced, serene design. Its caliber 100-02 movement manages the perpetual calendar functions, displayed via dial apertures such as the classic 'big date' window and a discreet leap year indicator below the 12 o'clock logo. Reference 100-02-25-12-06 features a rubber strap and pin buckle, 100-02-25-12-04 a rubber strap and folding clasp, and 100-02-25-12-53 a rubber strap and short folding clasp.