Art collection Limited edition made 1987 - max bill - – limited edition to 999 piece xxx /999 series Ref. IE 50 772 737 By Max Bill circular white mystery dial , with black rim and black date windows at 6, International collection: 1987 Case material: Ceramic watchcase type: With screws Bracelet: Leather , complete length Movements: Quartz electronic analogic Caliber number: 1433 Water resistance 30 meters (not tested) Dial Bright black (300) with date window at six o'clock and "stick" hands. - diameter Case diameter 28-30 mm mid size (there is 3 version made) in ok condition / one dent all at 5'clock position - pictures are part of description . Original quartz movement 6 jewels in perfect working order - with new battery installed original strap and good condition with omega stamped logo . The back has been designed by Max Bill- and signed artwork. minimal hairline seen on the back- check on photos. Strap length: avarage width: 16mm- 19cm lengt black original black pad pin buckle. New battery – Ceramic material – Sapphire glass – Date at six o’clock - Steel caseback omega box, Insured shipping with tracking from the EU.