The most Canadian Rolex you can get, the 5701 Air-King-Date or Explorer-Date, is the one watch that I see as a dealer very often but cannot be found anywhere else, mostly because it was a Canadian trend for companies to gift these watches. This one proves this with its polished caseback (engraving removed). The watch is otherwise very honest and its thick case is very good after all this time, bezel remained unpolished. The dial is where this watch shines and its early
-DATE- under Explorer shows its originality. The luminous mass is original throughout and is original to the watch, the Geiger reacting at 500+ CPM. 
 
Details:
 
Brand: Rolex
Model: Explorer -Date-
Reference: 5701
Year: 1959
Material: Stainless Steel and Thin 14k Gold Bezel
Dimensions:  35mm (early models have a thicker case)
Crystal:  Cyclops 117 Crystal
Movement: Automatic
Bracelet/Strap: Wristwatchme Purple Strap
Box/Papers: No/No