I have seen many Canadian private label watches over the decades which had Longines movements in them. I ran into a drop dead gorgeous hunter cased pocket watch this past Tuesday. The case was a near mint 14-karat hunter with a Regal trade mark, set with 4 old European cut diamonds on the case back, a 12-hour vitreous enamel dial marked DINGWALL. The movement was a nice 3/4 plate, 15-jewel Longines, in nice running condition. She had the watch hung on a beautiful 14-karat chatelaine (brooch) which her heirs had made by Birks Jewellers in Winnipeg, about 50 years ago. D R Dingwall was an early 20th century jeweller and railroad watch inspector in Winnipeg, Manitoba. Sold out to Henry Birks & Sons Jewellers circa 1933, thereafter named Birks/Dingwall. The building still stands. At one point, Dingwall employed 22 watchmakers, likely because of the city of Winnipeg having been a major railroad hub.
The subject watch is marked RYRIE, of Toronto. Another firm who interestingly sold out to Birks Jewellers.