Triple Calendar Moonphase 3-Tone

Rare Vintage Audemars Piguet Triple Calendar Moonphase 1928 Pocket Watch from 1928.

Extremely Rare Audemars Piguet Triple Calendar Moonphase, three-tone with Arabic numerals and dot indexes, three auxiliary dials for indicating the months (numbers and letters), the date and the days of the week, opening for the phases of the moon, small second hand and track timer. iron signed.

Manufactured in 1928 and sold in 1940 in Geneva