Vintage Heuer MONTE-CARLO TACHY Ref.542.817 55mm stopwatch #1

A vintage Heuer stopwatch. A great addition to the vintage car. Very rare and very early. Great condition.

Technical descriptions of the MONTE-CARLO and AUTO-RALLY TIMERS

Movement: sturdy jewelled lever movement, 7 jewels, INCABLOC shock-protection, unbreakable mainspring.

Running time: 24 hours. Timing limit: ± ½ second per hour or ± 6 seconds per 12 hours.

Dials: all models are provided with luminous dials and hands (guaranteed no Strontium 90).

All HEUER Dashboard Instruments are provided with a turning bezel with a luminous pointer which allows setting known time marks in advance.

Shows actual time of trip as standard model and on the outside Tachometer scale average speed from 50 to 200 miles (or km) per hour over a measured and timed mile (or km).

Ref.542.817 MONTE-CARLO TACHY
Diameter: 55mm
Year of production: 1966