Nice about 6 size private label hunter, A. Ross & Co, Port Arthur, Ont. Nothing under the bridge, but looks Longines to me, but what does the herd think who made the movement?

Hi Ernest !

Not a herd but one lonely sheep answering:

I would agree your opinion about Longines as the maker.

The exposed wheels, the trigular hairspring stud with one side rounded, and the 'ram-head' looking twin jewels are typical Longines. The earlier movements were sometimes unmarked on demand by the seller or 'private labeled'. It might be a mark on the dial side of the movement. Has the watch any serial# ?

The only problem ist: I do not know this exact movement in the small 6 size.

I would like to see some more pictures: dial case and one of the escapement/balance part with the watch not running.

Regards
Gerald

Agree with Gerald the ram-head or fish tail looks to be works of
Longines.

I have a private label 6 size like yours. It is from Wheeling West Virginia and belonged to my grandmother.It is a Longines.

Ernest, this is a private label 6s Longines from my collection of watches from old Albany, NY jewelers. Not the same, but some similar characteristics. Is your serial number before or after mine?

I vote Longines The extension of the bridge for the 3rd and 4th wheels cinches it, as does the spotted finish.