seiko

Recently I received a watch my dad used to wear - a Seiko Chronograph 7T42-7A5A. Since I’m curious about the history and details of the watch I decided to gather it on this page. I will update the page as I gather information, so it’s something of a perpetual work-in-progress. History When searching or the watch online, it’s usually called Seiko Olympic Chronograph, and with a reference to a year in the early 90s....