Case material: Steel; Charge: Automatic; Conditions: New Presentation condition : With boxes and all papers; Price on request Gmtbroker Reference: j025030270 Jaquet Droz j025030270 Complete Details: GRANDE HEURE ONYX This watch has a single hand to tell time. Unlike traditional watches which use separate hands for the hours & minutes, this watch has a single hand that points the hours & indicates the minutes by the progression between hour markers. In addition the time is displayed in 24 hour mode (the hour hand makes 1 full rotation in a 24 hour period). This watch features: Polished stainless steel case. Black polished onyx dial. White printed Arabic Numeral hour markers & dot 10 minute marker track. Polished stainless steel hand. Jaquet Droz Caliber 24JD53, beats at 28,800 vph, contains 28 Jewels & has an approximate power reserve of 68 hours. This watch is also known as j025030270