FEHB 1989 Techniques mécaniques FEHB 1989 BF 227 — 304701
European Watch Clock and Jewellery Fair 1989 BF 227 "Memodive" timepiece with decompression-time timer, for professional and experienced amateur divers. Its selfwinding ETA 2671 movement, with centre seconds hand, is capped and ringed by a patented, bell-like module containing a battery, an integrated circuit, a step motor and a timer system. The latter controls a centre hand indicating decompression times, calculated in tandem with a rotating bezel. This astute and practical technical solution has many advantages including constant time functions, low power drain and compact size (especially thickness). Equipped with a ratcheted rotating bezel, the case is water-resistant down to 100 m. (MEMOTIME "Memodive")