====== Zenith 4031 ====== **Zenith 4031** is a calibre by [[Zenith]]. [[Self-winding]] [[chronograph]] movement with [[big date]], [[minute repeater]], [[alarm function]], [[second time zone]] and triple [[power reserve indicator]]. Bi-directional winding ball-bearing [[central rotor]]. Used with the model [[Zenith Grande Class Traveller Répétition Minutes]]. **Manufacturer:** * [[Zenith]] **Description:** * [[Self-winding]] movement, bi-directional winding * [[Escapement]] Stone lever * [[Yoke winding system]] * [[Weight segment]] in 22ct [[white gold]] with [[Côtes de Genève]] * [[Chronometer]] certificate ([[COSC]]) * [[Column wheel]] calibre * [[Shock protection]] Kif-Ultraflex **Functions:** * [[Chronograph]] * [[Small seconds]] * [[Big date]] with instantaneous date change * [[Dual time zone]] * [[Minute repeater]] a low tone indicates the hour, a double the quarter of an hour and a high tone the minutes * [[Alarm function]] with two signal tones and vibration alarm * [[Power reserve]] indicators for movement, [[alarm]] function and repetition **Data:** * 13¼ [[ligne]]s * D 30.0 mm, H 12.98 mm * 63 [[jewels]] * 744 components * 36,000 A/h * Power reserve > 50h **Production period:** * Since [[2005]] {{tag>Movements Automatic_movements Chronograph_movements Minute_repeater_movements Zenith_calibres Grande_complication_movements}}