The Glash:utte Original Senator Perpetual Calendar watch impresses with its intricate movement and elegant design. The dial features convenient apertures to display all the functions of the perpetual calendar, including the 'big date' window and subtle leap year indicator. Choose from three options: reference 100-02-22-12-01 with an alligator strap and pin buckle, 100-02-22-12-05 with an alligator strap and folding clasp, or 100-02-22-12-50 with an alligator strap and short folding clasp.