http://www.thewatchbox.com Frankly, the IWC GST Rattrapante 3715-03 has it all; split second chronograph; day/date display; 43mm modern case size, no-nonsense black/white utility dial; satin titanium finish; modular bracelet; trigger activated deployant clasp. Yeah, it's a lot. But there's more. The GST Rattrapante was an IWC exotic produced during a brief window from 2001 to 2004. It's a crossroads model that combines 21st century proportions - a meaty 43mm diameter - with the kind of honest tool-watch styling philosophy that made IWC a Teutonic standout and collector cult favorite in the predominantly Francophone world of Swiss horology. The battery of original ideas and value-added features is staggering. While a bombproof Valjoux 7750-based caliber 79230 provides the basic motive power, IWC's in-house split-seconds mechanism provides the kind of engineering contribution connoisseurs expect from the "BMW" of Swiss watchmakers. Invented in 1991 by IWC complications specialist Richard Habring (now proprietor, Habring2 of Austria), the rattrapante mechanism pioneered by IWC was a horology watershed that solved the ages-old challenge of producing a split-second chronograph in series. Want to time two simultaneous events with a watch that costs less than $100,000? Thanks to IWC and Richard Habring, you can. Beyond the visual fireworks of the rattrapante, the day-date provides everyday complication that never ceases to provide a convenient point of reference. The dial is a masterclass in functional elegance. Both legible and beautifully balanced, the white-on-black dominant palette is pure Schaffhausen; the yellow highlights provide just enough of an aesthetic "wink" to assure the owner that IWC watchmakers also know how to have fun. With a full titanium case and bracelet, this watch wears light and wieldy on the wrist. The size may scream "broadsword," but the mass whispers "dagger!" The IWC GST Rattrapante 3715 is an easy sports watch with which to live and work. Its mass never encumbers, and the discreet blue-grey titanium with satin finish enables easy co-existence with formal attire. Back in the day, IWC knew how to build ideal two-way players for the work-hard/play-hard set. Fans of classical Schaffhausen iron (or Ti) who miss the days of stolid sophistication from northeast Switzerland can relive the glory days with the IWC GST Rattrapante 3715-03. See it and its factory accessories in high-resolution images on www.thewatchbox.com Video and content by Tim Mosso.