100-02-22-12-53Ref

The Glashütte Original Senator Perpetual Calendar marries an advanced movement with a serene visual style. Driven by the caliber 100-02, the perpetual calendar indications are visible through dial apertures, notably the 'big date' window and the leap year indicator below the 12 o'clock logo. Reference 100-02-22-12-06 uses a rubber strap with a pin buckle, 100-02-22-12-04 features a rubber strap with a folding clasp, and 100-02-22-12-53 provides a rubber strap with a short folding clasp.