An update to the 1815 Chronograph from A. Lange & Sohne might just make it the ultimate purist’s chronograph – and one of the most desirable watches in the world, full stop
By Chris Hall

You already know how we feel about chronographs from A. Lange & Sohne. The Datograph Perpetual is a glorious thing – and we aren’t the only ones who think so; when we asked Kari Voutilainen for his opinion he had nothing but praise for the movement within. Elsewhere, whether it’s a grand complication like this year’s Tourbograph or a simple 1815 boutique edition, A. Lange & Sohne rarely puts a foot wrong when it comes to chronographs.  
And now this – an updated 1815 in white gold with a black dial that just might be the ultimate purist’s chrono. The mother of all sweet spots. And a really compelling rival to the Patek Philippe 5170 (especially considering the 5170G has been discontinued; there may be a few still on the market but Patek is now only producing the 5170 in rose gold or with a platinum case with diamond hour markers).  The Patek Philippe 5170G, seen here with a Datograph Perpetual, Chopard LUC 1963 and Breguet 5287, is no longer available
Reading down this watch’s list of specifications, it is as though it was designed from a watch lover’s wish list. 39.5mm in diameter and only 11mm thick. No date window – because as much as we admire the Datograph, the #nodate fanbase remains strong. ...