To those in the know, this watch looks interesting. Model is 4006 7001 on caseback but marked 7006 and 7080 on dial. Should dial numbers match as many don’t seem to.
Many thanks.
This is common--on Seiko Pogues, the dial's 6139 6009 and the caseback is 6139 600X (anything, honestly, from 0-9; the True Pogue's a 5, but I believe each number was used). Looks great, and FWIW @rootbeer7, Seiko Bellmatics sound fantastic (to me), far softer than the tattoo-needle-buzz of Memovoxes and Crickets.
Thanks so much for your help.
The number on the dial indicates the calibre (first four digits), and the dial set (second set of digits which indicate style, colour, hand colour, etc). The numbers on the back are again the calibre, but the second four digits are the case code.
The case code depends on the calibre which is why it is given as the second part of an 8 digit code. Another watch case could also be coded 7001 but be completely different.
Your Bellmatic born in November 1979 is allright. Day and date with different color is ok. Probably it has a calibre 4006A. Enjoy 👍
I think you meant 1969!! Thank you.