Movement details – cal. Hamilton 631, High Beat 36000 A/h, AS 1920, 17 jewels, incabloc shock protected, 46 h power reserve, sweep second hand, Triovis micrometer regulator.

http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&AS_1920

Contact us: