Breitling “GMT Chronomatic”

Swiss Watch Fair 1971 BF 261
The right watch for sportsmen, pilots or globetrotters a chronograph with automatic movement 12-hour register and calendar. An extra hand makes one dial revolution per 24-hour period; combined with the circular moving scale, the time in any time-zone is easily read. All steel, water-resistant case. (BREITLING “GMT Chronomatic”)