The A Lange & Sohne 1815 Chronograph is one of my favorite watches in the entire A Lange & Sohne collection. I have especially been infatuated with the 1815 Chronograph with a silver dial, blued hands and black Arabic numerals. Recently, A Lange & Sohne released the NEW 1815 Chronograph Black Pulsimeter. This Pulsimeter chronograph is a subtle nod to the “doctors” watch that originally came out in the 1950’s. The case is 18kt white gold, measures 39.5mm x 11mm. It has double sapphire crystals. The movement is the German manual-wind Lange in-house caliber L951.5 with 34 jewels (4 screwed gold chatons), 18,000 vph and a power reserve of 60 hours. This is decorated and assembled by hand; precision-adjusted to five positions; plates and bridges made of untreated German silver; balance cock engraved by hand, lever escapement.Shock-resistant balance with eccentric poising weights, precision beat adjustment system with lateral setscrew and whiplash spring. The functions include: hours, minutes, and subsidiary seconds with stop seconds; flyback chronograph with precisely jumping minute counter. It has a solid silver dial, finished in black, with rhodiumed gold hands; chronograph sweep seconds hand made of rhodiumed steel. Pulsimeter scale on the outer ring of the dial and a railway-track minute scale. It fitted on a black hand-stitched alligator leather strap with an 18kt white gold prong buckle. It’s not my favorite A Lange & Sohne, but it’s a welcomed edition to the family and I am sure it will do well. I am sure it won’t be cheap like the other white gold models. I am sure it will be in that 55-60k range!