Zenith CHRONOMASTER ORIGINAL 38 mm Grey Dial Stainless Steel Leather Strap 03.3400.3610/39.C910

The CHRONOMASTER Original Triple Calendar is crafted in a 38mm steel case with blue strap, paired with a sunburst slate-grey dial displaying the day, date month and moonphase. Powered by the El Primero 3610 automatic high-frequency chronograph movement with 1/10th of a second chronograph function and a power reserve of 60 hours.