The present timepiece, reference Bell & Ross by Sinn 144 GMT, is a very well-preserved example from the early production period of Bell & Ross. Belamich had started his watch career in 1993 as an intern under Helmut Sinn, the former manager and owner of the Frankfurt watch manufactory “Sinn Spezialuhren”. It was at Sinn that they started constructing their first timepieces, recognizable by the additional inscription “by Sinn” on the dial and case and the typical winding crown with the Sinn symbol, until they gradually switched to their own independent production in Switzerland.