I've posted this link in the Seiko thread but thought it may also appeal to the wider watch community. It was originally posted on the Seiko Citizen Watch Forum by a member and talks about the in-house rivalry at Seiko in their effort to produce better watches and then take on the Swiss. It runs about 30 minutes and is well presented and very informative. https://www.atlassian.com/blog/podcast/seiko-duelling-factories