Mens Roamer Searock automatic from the 1970s. Movement: 17 Jewels automatic movement with Calibre. MST 522. Also has a hacking system, which allows you to turn the crown forward (manual twist) to start the clock. For more information about the movement, see the link: http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&&2uswk&MST_522 The watch measures: 36mm in diameter excluding the crown. 38mm from top lugs to bottom lugs. 20mm between the lugs. The watch strap is a new watch strap that measures around 115 / 77mm. Serial Number: 522.2210.327 Casenumber: 22166 Case/Caseback material: The case is gold plated with 10 microns layer of yellow gold. (Reads Plaque 10 between the lugs). The caseback is made of stainless steel. Function for the Date Window: This watch has a quickset date system that works so that you pull out the crown to the first click to change the date (move crown backwards), and when you pull the to second click, you can change the time by moving the hands to the time you want. Appearance & Function of the watch: Roamer watch has a few scratches on the case, but nothing remarkable for its age. However, has more visible scratches at the edges of the case and lugs. The caseback has some small scratches but nothing big and noteworthy either. The crystal is in very good condition. The movement works great and keeps time well. This watch will be shipped insured and tracked via Swedish Postservice: Postnord.