The spilt-seconds chronograph along with the perpetual calendar, the minute repeater, and the tourbillon is among the quartet of high complications that serves as the standard by which all haute horlogerie brands are measured.
And few brands do it better than Patek Philippe. Its Ref. 5370 in platinum with a black dial is a connoisseur’s delight, it was the first split-seconds chronograph from the brand that featured an in-house movement, the caliber CHR 29-535 PS. This year, the Ref. 5370 is presented with an upgraded new grand feu enamel dial.
The watch has the same 41 mm polished platinum case as the one from 2015. It has satin-brushed flanks and is fitted with a concave bezel, the case is 13.56 mm thick and is water-resistant to 30 meters. The highlight, of course, is the shiny blue grand feu enamel dial with white gold Breguet numerals. The enamel is applied by hand to an 18K gold dial plate and like with all Patek Philippe platinum models, a tiny diamond is placed between the lugs at 6 o'clock.
The bi-compax chronograph layout sees a 30-minute counter at 3 o’ clock and a running seconds hand at 9. While the chronograph is operated by the two pushers at 2 o’ clock and 4, the rattrapante (split-seconds) pusher is integrated in the crown at 3 o'clock. One of the cool things about this is the instantaneous jump of the chronograph minutes counter.
As mentioned earlier, the watch is powered by the in-house caliber CHR 29-535 PS. A traditional manual-winding chronograph movement, it has a dual-column-wheel control (two column wheels since this has a rattrapante function) and a horizontal clutch. The movement boats six patented chronograph innovations, and an additional one for the rattrapante mechanism. It has an escapement that oscillates at 4 Hz (28,800 vph) and a power reserve of 65 hours. Paired with a blue alligator leather with a fold-over clasp, the watch is priced at AED930,000.