Case material: Yellow gold; Charge: Manual; Conditions: Never worn Year : 1920; Presentation condition : With boxes and all papers; Model: Chrono € 5850 Gmtbroker Reference: nessuna this is an excellent vintage pocket watch rattrapante, open face from an unknown watchmaker in 18k yellow gold. manufactured in around the 1920s, this beautiful pocket watch has a very fine complicated movement. very heavy 18k gold case! beautiful and elegant split second pocket watch! 12 month of bachmann & scher?s warranty!