De Grisogono marked a first in watchmaking at this year's Basel fair with the launch of a timepiece with a dual analogue and mechanical digital display. The Meccanico dG, which has a complex movement constructed from 651 components, was designed to display the time in two zones - one with an analogue face, the second with a mechanical digital display, echoing the quartz era of three decades ago. The movement is a construction of microsystems with sophisticated cam and gearing mechanisms. The digital time, which displays the tens of hours, the hours, the tens of minutes and the minutes, is achieved by 23 horizontal and vertical segments, each with two coloured inserts and two invisible faces. One or more of the segments rotate 90 degrees to indicate the time. The analogue time is controlled by a crown; the second time zone can be reset by two correctors. The movement - black, like all the watchmaker's calibres - is visible through a transparent dial. The watch comes in various metals including pink gold, titanium, titanium with rubber, or titanium with platinum. As a brand that likes to stay one step ahead of the trends, de Grisogono's new Instrumento Grande Open Date demonstrates its forward-thinking creativity. This new version of the timepiece shakes up the rules of geometry where angles, curves and straight-lines converge. On the dial, the 2, 4, 8 and 11o'clock hour markers, visible on its predecessor, are removed. Also on the dial, two oversized discs form the date, with the present date appearing in an aperture at the 6o'clock position. Hour markers set in a circular disc sit to the right of the dial. The horizontal rectangular pink gold case reveals the workings of the watch in an opening on the case rim. Four styles are available: a brown dial with brown discs and white numerals, a black version with white discs and black numerals, and a silvered dial with white discs and black numerals, or set with baguette-cut white diamonds. In other collections for men, the Fuso Quadrato plays with the display of the second time zone function. De Grisogono's diaphragm mechanism is used to build a dual time zone display. A slide positioned on the case flank opposite the crown activates the diaphragm's 12 titanium blades to reveal or hide the second time zone dial. When the blades are closed, the local time is displayed. The self-winding watch has a 42-hour power reserve. Finishes include satin-finished and fine-grain sandblasted dials, Clou de Paris cobbled finish, and the hour marker, numerals and case in matching metals. The watch is available in pink gold or white gold. In the women's collections, a dash of luxury is added to the Instrumentino series with the Instrumentino Steel and Diamonds. The volutes scrollwork on the dial remains a signature of this series, but luxury is added with the dial's diamond-set patterns. One version sees 19 brilliant-cut diamonds set in a sub-dial at 6o'clock, which displays the second time zone, and comes with or without stones set in the first time zone indication. A second version sees the first time zone bedecked with white diamonds and six black diamonds. Both models come with a black galuchat strap and quartz movement. The Occhio Ripetizione Minuti (minute repeater) was introduced four years ago and de Grisogono adds a new limited edition to the complicated collection. The watch features a mechanism inspired by the reflex of a camera: it is formed by 12 mobile titanium blades with a diaphragm which opens and closes at will. The movement works by a diaphragm sub-assembly, which opens by the simultaneous movement of the 12 blades when the minute repeater is triggered and closes when the hours, quarter and minutes have sounded on three gongs. The watch bezel, case flanks and lugs are set with 154 baguette-cut diamonds. The case back reveals the movement of the three hammers on the gongs. The watch is finished with a matt black dial and white gold case.