The Bovet Chrono is dated back circa 1930s...
Bovet, for those who are familiar with this established and very exclusive swiss watchmaker, it has more than 200 years of watchmaking history. Bovet was the first western watchmaker to have made pocket watches ordered by the Qin emperors of China.
To date, many pieces of vintage Bovet pocket watches are still kept as treasures of the Old Palace Museum in Beijing's forbidden City.
In the old days, it was known that Bovet had produced only 12 pieces for each watch model for sales. Waiting time then was long. Therefore its circulation is deemed to be very limited in numbers. The modern Bovet productions are now in higher quantity to meet commercial demands.
This Bovet chronograph should be a very rare piece indeed based on its vintage status... produced in the 1930s. This chrono only caters to 30 minutes time counting sub dial (located at 3 o'clock position) which is common in those days.
By the way, it has a handwinding movement. That is obvious.