The Crystal Seven line was an important one for Citizen, as it introduced a wide range of models using their 52 movement in 1965, featuring hardened mineral glass for the first time. It was this that put ‘Crystal’ in the name, and it proved a successful line, with many movement variants from 21 jewels to 43 jewels – Citizen’s highest ever jewelling, and now a sought after piece. With a ‘Custom’ line featuring more colourful dials and cushion cases, there was something for everyone. Today’s example is a 27 jewelled model, ACSS2923, from April 1968. This was one of my first purchases, and I have seen other dial designs with the same model/case number, so I can’t be sure that it is fully original – it feels it somehow though 🙂 And the original bracelet is a classic, and very nice, beads of rice type:

More info here: https://sweep-hand.org/2011/06/23/this-weeks-featured-watch-8-the-crystal-seven-27-jewels/