Das Rolex - Etancheiscope. Rolex Oyster Patent Etancheiscope, Ref. 1000. Made.in the 1970s.Vacuum tank apparatus for checking the water-resistance of Oyster watches.
Beschreibung : The chamber is filled with distilled water. The lever creates.a vacuum, thus drawing air from the inside of the watch.Escaping air bubbles indicate the exact location of the potential leak, pressure gauge calibrated from 0-76..Dim. 24 x 37 cm. In very good condition, may be in need of service. Private Sales, no return.