IWC Big Pilot Annual Calendar Spitfire IW5027-02 features a 46mm stainless steel case with a scratch-resistant sapphire crystal. The sunburst ardoise grey dial possesses luminous hour indices, white minute calibrations, annual calendar apertures at 12, power reserve at 3, small seconds at 9, and luminous-fill center hands. Powering this Big Pilot Annual Calendar, and visible through the sapphire case back, is a self-winding IWC 52850 caliber which boasts a 7-day (168-hour) power reserve. Watch is presented on a brown Santoni calfskin strap with steel folding clasp.
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