ETA caliber 252.511

Quartz movement ETA Flatline Hours, Minutes, Seconds, Date. Very high precision; thermocompensation. 100 year perpetual calendar (date) displayed in window (valid until 2099). Instantaneous change of date, precision of the jump, approx. 2 minutes. By pressing the crown, momentary display of the month and cycle of year by date indicator (IV for leap year).