Also, the movement has a serial number but It's not at all preceded by a "D" as are every one of the chrono movements I have witnessed and what could be the significance of the initials "ROW" stamped over the plate? This web site employs cookies that can help personalise https://patek-philippe62728.tribunablog.com/5-tips-about-audemars-piguet-you-can-use-today-49225542