Vintage Heuer was about design and usability.  The Carrera was a chronograph for racing drivers designed to be sleek and legible. This Heuer chronograph is only going to become harder and harder to find. Collectors want the improved Valjoux 92 movement, which was installed in the 3674. The Valjoux 72 was the predecessor in the Heuer 2447.

Heuer Carrera 45

Reference Number: 3647S

Year: 1966

Information:

Strap: Canvas Rally Strap

Case Size: 35mm x 11mm Thickness

Lug Width: 18mm

Case Metal: Steel

Movement: Automatic

Functions: Time, Power Reserve, Chronograph

Box and Papers: No (Box from Christies auction house included)

Crystal: Plexiglass

Bracelet size: 8”

Caliber: Valjoux 92