Two world firsts: the first water-resistant timepiece with a square case and the first automatic chronograph.
DIAL
- Mat blue dial
- 2 silver counters: minute chronograph counter at 9 o'clock, running second counter at 3 o'clock
- Polished horizontal faceted indexes and luminescent dots
- Hour and minute hands with red line and luminescent markers
- Black counters' hands
- Red chronograph central second hand
- Printed vintage Heuer logo
- "MONACO" & "AUTOMATIC CHRONOGRAPH • CALIBRE 11" lettering on the dial
- Printed minuterie
- Angled date window at 6 o'clock
CASE
- Case dimension: 39mm x 39mm
- Fine-brushed and polished steel case
- Fine-brushed steel bezel
- Sapphire crystal glass
- Polished steel crown at 9 o'clock with raised polished Heuer logo
- Polished steel push-buttons
- Sapphire caseback
- Water resistance to 100 meters
MOVEMENT
- TAG Heuer Calibre 11, Swiss Made
- Automatic calibre, rapid date correction
- Diameter: 30 mm (13''') — 59 rubies
- Balance frequency: 28,800 vibrations per hour (4 Hz)
- Power reserve: about 40 hours
STRAP
- Black perforated calfskin strap
- Steel folding clasp with safety push-button and Heuer logo