In 1891 the brothers Albert and Gustav Stolz established their watchmaking manufacture in Le Locle, Switzerland. They were former students of Henri Sandoz, director of the Tavannes Watch Co. and heading for great things in the watch world. Their first, of many gold medals, was obtained at the 1902 Paris International Exposition...and they were off to the races. By 1904 they were 15 strong and already making their own ebauches (movement blanks). As they grew in experience and expertise there were many wonderful watches coming off the line. None was more iconic than the "Chronodato" that we are presenting here for your approval. It is the ultimate pilot's tool watch. Not only does it have the day of the week displayed in a small window beneath the center of the watch, but there is also a corresponding window just below the 12 o'clock position that displays the month. The date is indicated by a red-tipped arrow hand as it points to a 31 day track just outside of the minute track. For the pilot the most important thing was the elapsed time that the chronograph would indicate for a landing approach. By depressing the pusher at the 2 o'clock position he could start the central sweep second hand and then read elapsed time on the subsidiary dial at the 3 o'clock position. Once the landing was accomplished the pilot would push the upper button again to stop the sweep second hand and then he would push the button at the 4 o'clock position to reset the sweep hand and the accumulated time on the sub dial. The sub dial at the 9 o'clock position is a constant seconds that runs continuously. The Chronodato model was introduced by Swiss watchmaking power house Angelus in 1942. This was the world’s first chronograph with a full calendar (day-date and month) and due to these features, it became highly popular among consumers. So much so, in fact, that the line was in production for roughly 10 years. In the 1950’s, however, the Chronodato model was replaced by the amazing Chrono-DatoLuxe family, which lacked the month display but had a moon-phase and a big date instead. It was produced in stainless steel, gold plated and solid gold versions with different dial variations. Our watch is the gold plated "Chronodato" with a stainless steel back for wearing longevity. Yes, this watch has it all, and a nice size to boot measuring 37 mm in diameter, by 48mm, lug to lug. The all original silvered dial is in fantastic condition showing only minor imperfections. The movement is a 17 jewel, cal 217 which our watch makers have running perfectly. Remember all of our timepieces come with our famous one year warranty for parts and labor so that you may buy with confidence.