Additional Info :
The Mark XII was a big success for IWC as it is designed as a pilot watch resembling their legendary Mark XI and is also in size, weight, and readable clarity a great watch for either dress or sport. The styling of the dial, hands and case is crisp and clear.
However, most people are unfamiliar with the mechanical automatic movement hidden inside its case beneath a soft iron inner cover from one side and a sapphire glass on the other side with a screw-down crown in between. Thes movement is based upon JLCís calibre 889/2 - a 36-jewel fast beat automatic movement vibrating at 28,800 beats per hour. JLC assembles these movements in their factory for its sister company, IWC, under IWC's own calibre 884/2, a different calibre number designating technical and/or finishing modifications. The 884/2 has 36 jewels and the finish is a flat matte nickel plating with no decorations on any of the bridges or rotor. Unlike the same basic movement used by IWC in other models such as their Ingenieur, where the rotor is in 21 ct. gold or platinum, the Mark XII rotor is also nickel plated and plain to match the rest of the movement plates.