I recently bought a 12 size open face Vincennes pocket watch almost sight unseen. It arrived and I opened the hinged back case to find a very nice Swiss movement from the 1910-30 era? It is marked on the movement MYR watch co. and Vincennes associates Inc. 17jewels,six adjustments. The case is plain and marked 14k with the Swiss squirrel hallmark and Vincennes Associates Inc. Swiss. A very well made case and watch and I would love more info as I would guess this was not sold at Montgomery wards! I will post pictures as soon as my son comes back!