IMPERIOS MONOPUSHER CHRONOGRAPH, '30S
Three body circular metal case, n. 315772, plain bezel, concave lugs and fixed bars, snap on back, olive pusher. Not original strap and buckle.
Signed silver two-tones dial, sectorial indication for the hours, minutes/seconds division and outer 1/5th of seconds fraction, outer telemetric scale and inner snail tachymeter graduation, sunk dials for seconds and 30-min counter. Blued bâton hands.
Signed manual winding movement, nickel-plated caliber Landeron/Hahn 15’'', column wheel system, lever escapement, monometallic balance with screws, flat hairspring.
Diameter Ø: 40 mm
Note: working.