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Calibre 1887

Calibre 1887

Description
TAG Heuer Calibre 1887 . Swiss Made. Automatic calibre. Diameter: 29.3 mm (13''') — 39 rubies. Rapid date correction.
Performance
Balance frequency: 28.800 vibrations per hour (4 Hz). Power reserve: about 50 hours, about 40 hours when the chronograph is engaging.
Display
Hours — minutes — small seconds at 9. Chronograph minutes at 12 and chronograph hours at 6. Date at 6.
Decoration
Oscillating mass: 'Côtes de Genève' engraved 'TAG Heuer — Calibre 1887 Swiss Made'.