B013 - "Astronomer" (Edition I) is a mechanical wristwatch Behrens has developed base on the inspiration from astronomy. From which Behrens has adopted a Cal.9015 automatic movement (one of the most stable mechanical movement from Miyota) and then Behrens heavily modified it by installing a mechanical module which Behrens has designed, developed and constructed completely in-house. The time display function (similar to the star-wheel concept) is by the 3 sapphire discs which instantly rotate by itself alongside with the whole mechanism revolutionary to display the hours. Whereas the track on top of the dial represent the minutes.
Movement: : Miyota 9015 Automatic
Glass: Dome shape sapphire crystal
Case Material: Stainless Steel 316L
Case Back : See-Through
Dimensions: 42mm case
Dial: Blue Aventurine Dial
Functions : Star-Wheel Hour & Minute, Centre Second.
Limited: Sliver case - 200 piece; Black case - 100 pieces
Strap : 21mm Alligatorp Strap