Calibre 4

Calibre 4

TAG Heuer Calibre 4, Swiss Made.
Automatic calibre.
Diameter: 17.50 mm (7 ¾''') — 25 rubies.
Rapid date correction.

Balance frequency: 28,800 vibrations per hour (4 Hz).
Power reserve: about 38 hours. Hours — minutes — seconds.
Date window. Oscillating mass: "Côtes de Genève", engraved
"TAG Heuer — Calibre 4 — Swiss Made".

Automatic movement

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