Approx.35 x 18mm, ring diameter 20mm, RG64, gold and silver, French 18K gold punch, all around diamond trim, 18K Gold case with hinge bottom, extremely flat cylinder movement, view of the diamond-set balance, central dial of green guilloche enamel, gold hand, very nice condition, manageable. The construction of the balance points to Piguet & Capt and successors as factory manufacturers (https://www.cortrie.de/go/ld3).