Due to be launched at Watches&Wonders 2015 in Hong Kong, the new 1815 Chronograph from A. Lange & Söhne harks back to the first generation model with the pulsometer scale on the dial. It’s further distinguished from other versions of the 1815 Chronograph with its silver dial paired with blue numerals and markings, along with rhodium-plated gold hands, instead of blued steel hands. The 1815 Chronograph boutique edition becomes the second classically styled chronograph that will be unveiled at W&W 2015, after the Vacheron Constantin Cornes de Vache.

While the first generation of the 1815 Chronograph featured a pulsometer scale, the current generation did away with that, until this boutique edition. It is a welcome addition for the pulsometer scale does a great job of filling up the real estate around the dial. Invented for doctors and nurses to easily measure a patient’s pulse, the pulsometer scale on the 1815 Chronograph is graduated for 30 pulsations.

Starting the chronograph along with the pulse count, then stopping it at 30 pulsations, swiftly provides the pulsations per minute with the central seconds hand pointing to the number on the scale. Both chronograph hands as well as the constant seconds hand at eight o’clock are in blued steel to match the dial.

Dial aside the new 1815 Chronograph is identical to the current models. The white gold case has a diameter of 39.5mm, with the hand-wound L951.5 movement inside. It’s essentially the same movement as found in the Datograph, but without the oversized date and power reserve indicator. It has a 60 hour power reserve and a free-sprung, adjustable mass balance, two features the first generation movement lacked (that had a measly 36 hour power reserve).

So the new 1815 Chronograph with pulsometer scale looks like the first generation but has all the advantages of the second. It’ll only be available at Lange boutiques. This will retail for €49,000, including value added tax of 19%.

Edit September 8, 2015: Retail price in euros added.