Set of 3 manual wound GRUEN wristwatches

Set of 3 GRUEN wristwatches, all manual winding, end 1940`s, all yellow gold-Filled- cases, 1 x Very Thin Precision gents wristwatch, dial due to age spotty/patinated, lever movement, 21 jewels, calibre 335, measures approx. 38 x 22 mm, condition 3, 1 x Precision, measures approx. 37 x 20 mm, slightly curved, snap on case back, lever movement, calibre 355, 17 jewels, Breguet- hairspring, condition 2-3, 1x model Precision with fancy lugs, measures approx. 40 x 20 mm, snap on case back with initials, lever movement, calibre 354, 15 jewels, condition movement 2-3