Cool silver and black watches from Citizen’s Calibre 2100 series are all quartz chronographs. Each of the timepieces is hand-assembled, fitted in a metal case and paired with the matching bracelet with a safety fold over clasp with a push button. There are five watches in the collection. Four of them are constructed of steel and the fifth one is made from titanium. Each of them includes Eco-Drive technology and thus, it does not require battery changing.
All five watches from the lineage are 1/5th second chronographs. Another common feature is a retrograde display of remaining battery power, situated at the top of the dial. Likewise, they are all protected with glareproof sapphire glass and constructed with screw-back cases.
Timepieces from Calibre 2100 collection are able to withstand water pressure to 200 meters below surface. The cases are either 44 or 47 mm wide. The larger steel models cost just shy of $600, whereas the single titanium and two smaller steel watches from the line cost $700 each.
The dials of the products from the series are silver, gray or black and they all include luminous hands. On the perimeter of each of the dials, there is a tachymeter scale. Date display apertures are located between four and five o’clock positions.