I read online that the Rolex Oyster cases started at around 20,000 serial # , yet I just acquired one #1071 marked Oyster Watch Co.??? Or is that the calibre # ??? The Oyster crown doesn't seem to screw down. Any information gratefully received and I will be listing it soon,thanks,Tom

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#5 link to similar watch on internet with a differently marked but identical movement,this one has a bad staff and mainspring ,

http://www.yorktime.com/search?cid=6:sku=239

#6 poorly soldered lug and yellowed crystal but the dial looks great underneath hands look to be original and in pretty good shape with a wee bit rust

soon to be listed