====== Breitling B04 ====== {{wst>image_cr|Breitling|B01|Breitling B04}} Calibre by [[Breitling]]. [[Self-winding]] [[manufacture]] movement, [[column-wheel]] [[chronograph]] with a [[power reserve]] of 70 hours. Extends the calibre [[Breitling B01]] to a GMT function ([[dual time-zone]]). First used in the model [[Breitling Chronomat GMT|Chronomat GMT]] from [[2011]]. **Description:** * [[Column-wheel]] [[chronograph]], column-wheel with 6 columns * [[Self-winding]] movement * Ball-bearing [[rotor]] * Officially [[COSC]]-certified [[chronometer]] **Functions:** * Hours, minutes, [[small seconds]] * [[Quickset date feature]] * ¼-seconds [[chronograph]], 30-minutes and 12-hours [[totaliser]]s * [[GMT]] function (24 hrs.) **Data:** * 13¼ [[ligne]]s * 30 mm, H 7.2 mm * 47 [[jewels]] * ? components * 28,800 A/h * [[Power reserve]] 70 h **Production period:** * From [[2011]] {{tag>Movements Automatic_movements Chronograph_movements Breitling_calibres Automatic_chronograph_movements}}