The Crystal:
Even though the technology for toughened glass and even sapphire crystal had existed for decades, almost all watches at the time had plexiglass glasses as crystal. The Citizen Crystal 7 made it different by featuring toughened glass in its product line giving the watch a sharp and scratch-resistant look and it nicely fashioned and modern at the time. Therefore the name Crytal 7 was created,and the 7 comes from the type of borosilicate glass called BK7.
Movement:
The movement we had in this Citizen Crystal 7 is an automatic 21 jewels Citizen cal 5204 with hand winding capability, beating at 18,000 bph. As you may notice, the watch is a day-date complication watch with day function placing at a unique position at 12 o'clock. This is a rare find for watch with day-date complication at this price point. The 52 series movement is proved to be very good at timekeeping; some people even say it is very close to Chronometer grade and Citizen Chronomaster line.
The case:
The case featuring a fluted bezel and a rather modern case size at 37mm is with polish and mirrored finishing. The watch feels solid on the wrist with any vintage leather straps.
All in all, the Crystal 7 is proved to be a successful product line, providing a wide range of affordable dress watches for Japanese market in the 60s. Today, we found the Crystal 7 still maintains its unique charm, as it is still one of the best entry points for entering the Japanese Vintage Watch world together with Seiko Lord Matic.
We proudly present you with this Citizen, get it before it is too late.
