Glashütte Original Senator Chronometer 42mm | 1-58-01-05-34-30Case: Solid 18k white gold polished finished with a fine brushed finished edge. Diameter: 42 mm. Thickness: 12. 47 mm. Water resistant to 50 meters. Dial: Varnished blue grained textured. Fine white printed Roman numeral hour markers and minute track. Polished white gold hands. Large double disc date window located at the 3 o'clock position the date changes in a single jump motion precisely at midnight (+ 15 seconds) rather than a gradual process.