Fine and rare vintage stainless steel AQUADIVE “Time-Depth” Model 50 barrel shaped cased 47mm electric diver’s wristwatch with mechanical depth gauge to 60 meters (200 ft.) made circa 1970s. Powered by modified electronic ESA 9154 movement. ESA/ETA 9154 is not quartz or a tuning fork. Instead this is an electronic movement that uses power from a battery to energise a balance wheel, in the same manner as the stored energy of the mainspring does in a purely mechanical watch. The outer silver bezel can be rotated anti-clockwise to set minutes remaining from 0 to 60.
C. Three-body, polished and brushed, screw done caseback, uni-directional rotating silver bezel, mineral crystal. D. White and black with Arabic numerals from 0 to 200 graduated in feet, luminous hour and minute hands, black center sweep seconds hand, and orange depth gauge hand. Dial marked AQUADIVE, TIME DEPTH, ELECTRONIC, SWISS MADE. M. Electronic Cal. modified ESA 9154, 13 jewels. Dial, case and movement signed. Diam. 47 mm.
Runs great and all functions work as expected. Please take a look at the photos for condition. Watch is in good condition 6/10, running and ready to wear or gift!