The Zenith Chronomaster Sport reference 3.3101.3600/21.M3100 was introduced in 2021 as a special edition for Yoshida of Japan. The stainless steel case measures 41.00mm across and is crowned by a ceramic bezel. Power comes from the self-winding caliber El Primero 3600, with a central seconds hand for the chronograph making a full round in 10 seconds ('Striking Tenth'). The dial is Black.