18k Gubelin Astronomic Tri-calendar Moonphase Automatic 38mm Ca.1958! 14k Band!

Details:

Brand Gubelin, Luzern / Lucerne Model "pso Matic" "Bidynator" Year circa 1950- 1955 Movement No. unnumbered Case (by C.R. Spillmann, Chêne-Bourg, near Geneva) Material 18K yellow gold Height 46.2 mm. Width 36.5 mm. Caliber 11½" lever escapement (based on Bidynator 693, ebauche by Felsa, Grenchen / Granges), adjusted to two positions Band: 14k Yellow Gold Milaneses Brick Bracelet 18K yellow gold, self-winding, round-shaped with elongated lugs, gentleman's wristwatch, with screwed case-back...