Early 1900's gruen pocket watch, works perfectly. for Sale in Mesa, AZ - OfferUp
Gruen Semithin Pocket Watch 15 Jewel - Ruby Lane
Gruen VeriThin 14 Karat Yellow Gold Art Deco Pocket Watch, circa 1920s For Sale at 1stDibs | gruen veri thin pocket watch, gruen pocket watch, modern gruen watches
Vintage Gruen Semithin Pocket Watch Switzerland Works Great - Etsy Israel