For the latest Massena LAB limited edition, William Massena?s boutique brand specializing in tasteful remakes of classic pieces with real watch nerd pedigree is reaching back to the 1960s, and showcasing a different type of tool watch. The collaborator for this edition, Angelus, is a historic Swiss brand known largely for their excellent chronographs, and the limited edition seen here is based on a deep cut made specifically for physicians. The Chronographe Médical x Massena LAB is the first watch in Angelus?s new La Fabrique collection, which will specialize in recreating important Angelus watches in small batch limited editions. 

The principle behind a ?doctor?s watch? is fairly well known. These watches were typically chronographs that incorporate a pulsation scale at the perimeter of the dial or within a bezel, making it easy for a doctor to quickly calculate the heartrate of a patient. Their operation is simple: start the chronograph, count ten heartbeats (or the number the scale on your watch is calibrated for), and then stop the chronograph. The chronograph seconds hand will be pointing to the number of heart beats per minute. You can imagine that the practicality here for a doctor, particularly when watches like this were being made in the 1950s and 60s, was off the charts. Even for the average person, it could be argued that a pulsation scale would be more useful day to day than something like a tachymeter or a telemeter. 
The Chronograph Médic...