The new CITIZEN C7 series follows the blueprint of the original Crystal Seven in terms of specification and design, with a few modern touches.

The CITIZEN C7 come with modern size at 40mm in diameter. Features a see-through caseback, the day complication window under the 12 o'clock hour index and 50 metres of water resistance. The movement specification of the CITIZEN C7, with its Calibre 8200 comes with an approximately 40 hours of power reserve, 21 jewels and a 21,600 vph beat rate.
 
Model: NH8391-51X
Calibre No: 8200
Case: Stainless Steel
Band: Stainless Steel
Glass: Mineral Crystal
Case Size: 40.2mm
Thickness: 13.1mm
Dial: Green
Water Resistant: 50M
Movement: Automatic
Power Reserve: Approx. 40hrs
Main Feature: Day & Date Display