NATIONAL WATCH CRONOGRAPH IN GOLD, CIRCA 1910 Case: signed,...

NATIONAL WATCH CRONOGRAPH IN GOLD, CIRCA 1910
Case: signed, n. 1001 8601, four-body in 18K gold, gilded metal dome.
Dial: signed, white enamel, Arabic numerals, minute track with 1/5th of second fractions, small seconds and 30-min register, multiscale tachymeter graduation, pear hands.
Movement: key-less winding caliber Martel Watch/Universal, gilded, column wheel, monometallic balance with screws, Breguet hairspring.
Accessories: –
Diameter Ø: 49 mm | Weight: 85.8 g
Note: working.