In the second part of 1947 Revue introduced an advanced (bi-directional winding) bumper automatic (calibre 80) but by 1950 it was already outdated compared to Eternas new fully oscilating autowinder design. Revue later utilised the Eterna derived ETA calibre 1259 that had been highly decorated and renamed calibre: 211, but by 1958 they had designed a completely new in-house movement and by 1959 the new calibre 87 was released. The new calibre 87 had a completely new gear train layout with integrated central sweep seconds and an advanced bi-directional autowinder mechanism (now with a fully oscillating weight). The new autowinder mechanism utilised a similar principle to IWC’s Pellaton movement; where a cam would engage two pawl levers that would drive a winding wheel that directly engaged the ratchet wheel, but unlike IWC that used two pawls to push on the winding wheel, the Revue pawls used one pawl to “pull” and another to “push”. Seiko simplified this design with their magic lever system launched in 1961. The new movement was modern and well made. I don’t know why it was retired so early, but it can not have been cheap to manufacture due to it’s complexity and high finish not to mention the fierce competition. In my option it’s a real shame, but on the other hand it makes it fun to look for this rear and hard to find movement.