A Note About This Reference

This Seiko Divers Reference is here for archive purposes. I updated this document on and off based on the Seiko & Citizen Watch Forum discussions until about 2007, when the forum moved to a new platform and the archived discussions were all but lost.

For current information about Seiko divers, please visit the new Seiko & Citizen Watch Forum @ thewatchsite.com The new site is an active community with many experts who keep reference materials about Seiko divers up to date.

This Seiko Divers Reference covers the vintage 150m & 200m automatic models that Seiko has been making since 1965. It contains some information on the high-end Professional Divers as well. The Reference timeline stops with the new iterations of Seiko divers using the 4R/6R movements as these are more current and information about them are readily available on many sites through search engines results.

The information here is compiled from postings of folks who share their knowledge and insights with each other every day on the Seiko & Citizen Forum. What I've done is simply to go through the archives and compile the relevant info in one place so those who are interested in the history and folklore of Seiko divers can use this as a reference. I've made no attempt to be complete or authoratative what's presented here. The reader should treat the information here as other materials found on the Internet -- do as much research as you can and form your own judgements. Have fun!

-- Kevin Chan <kefin@makedostudio.com> | <kc@kchan.io>