I finally plucked up the courage to take the movement out of my vintage Roamer, thanks very much Trim for telling me how to do it (I followed your instructions and it worked like a dream) ! I was pleasantly surprised at how lovely the movement is (even though it could probably do with a cleanup at some point), and relieved to see it was a genuine Roamer MST ! The movement number inscribed in the MST shield is 372, again you were spot on Trim as you said it was either a 372 or a 414. While I was at it I gave it a touch of + regulation as it's been a tiny bit slow, so that should help. It's so satisfying and wonderful to have a manufacture movement in one of my watches; I never imagined I could own one and this is my first and only in-house! Only set me back £22.50 including postage off Ebay, I shall treasure this watch (and especially this movement) and enjoy it hopefully for a very long time.