Most visitors online was 1660 , on 12 Dec 2020
It is somewhat embarrassing to admit that I have apparently been leading a rather sheltered existence when it comes to these Shell Oil watches. A Google search earlier today for "Shell Oil pocket watch, 17 jewel, by Clinton" brought up two pages of hits, which could be expanded considerably by clicking to show omitted items. By adding "....on NAWCC site" I found more! I have now learned that the later 17-jewel version by Clinton, using the Unitas movement is from the 1970s, approximately three decades after the original GP/AS Shell Oil watch. The new version apparently was intended to promote Shell's being the first to earn a 10W-50 MULTI-GRADE rating, the widest range available for a multi-grade motor oil.[EXCERPTED]The watch shown by Peter John in post 116 is the original circa 1940 version of the Shell Oil watch, using a unique A. Schild ebauche, skeletonized on the dial side (the upper or back is original AS design) and finished by Girard Perregaux.
The watch shown in post 115 by PatH appears to be a (perhaps much) later Shell Oil watch, using a Unitas ebauche (not skeletonized), with 17 jewels, perhaps finished by Clinton. I wish the movement photo were sharper so I could make out the markings and other movement details. I have never seen nor heard off this later version of the Shell Oil watch up to now, and it has really piqued my curiosity. By the way, the advertisement posted by Pat shows the original 1940 AS/GP version.
There is some folklore about these but I have not seenBut I am very curious, were these watches actually lubricated with motor oil?
Or was it simply a marketing ploy?
Someone was just having fun with it because the snap on bezelsFull of oil and running?
Unfortunately I haven't seen Larry post in a long time, but just wanted to say that this is an ebauche from Unitas of Tremelan, Switzerland as previously stated, and it's a calibre 6497. A 16.5 ligne movement widely used back then and today. Introduced in the early 1950's. Whoever finished it (Clinton?) added a different sort of shock protection than the ones I've seen before installed in these movements. It doesn't look like the normal incabloc.I wish the movement photo were sharper so I could make out the markings and other movement details.