Vintage Rolex Oyster Neptune, rare model

This vintage Canadian market Rolex is perhaps the rarest Oyster I have come across. I have owned Corvette models, Hurricanes, Pioneers, Grenfells, Lincolns and others that were scarce, but this is only the second Neptune I have owned.
This watch has the unmistakable Rolex minute chapter and dial configuration as the other Canadian Oysters of the 1930’s and 1940’s. The difference being that neither the word Oyster or Rolex appear on the fabulous rose colored dial.
The steel Oyster case is signed Oyster Watch Company and carries the reference number 3478 with a serial number dating it to 1937. Please note the original Oyster Patent crown, which screws down tightly to the tube.
The 17 jewel manual wind movement fitted in the watch is the same non shock resisting calibre 59 movement found in all the other Canadian Oysters of the period, however this one is signed Oyster Watch Ltd on one of the rear plates of the movement. This is fairly rare and makes the watch more sought after by collectors.
The watch was just serviced by my Rolex trained watchmaker and is keeping excellent time.
The case measures 29 mm wide by 35 mm long and is supplied on a wonderful burgundy leather strap.