OnTheDash®

The definitive guide to vintage
Heuer timepieces.

2446 C GMT

Autavia Reference 2446C GMT is a manual-wind; three-register chronograph (black dial / white registers), with 12-hour recorder, and GMT hand and bezel; in compressor case

Autavia 2446C GMT — Mark 1

Mark 1 dial has smaller, flat registers and is marked "T Swiss"; polished steel hands, with luminous inserts; white chronograph second hand; smooth pushers

Autavia 2446C GMT — Mark 2

Mark 2 dial has larger, stepped registers and is marked "T Swiss"; polished steel hands, with luminous inserts; white chronograph second hand; smooth pushers

Autavia 2446C GMT — Mark 3

Mark 3 dial has larger, stepped registers and is marked "Swiss"; polished steel hands, with luminous inserts; red chronograph second hand; fluted pushers

Autavia 2446C GMT — Mark 4

Mark 4 dial has larger, stepped registers and is marked "Swiss"; polished steel hands, with red and luminous inserts, and red triangular tips; red chronograph second hand; fluted pushers

Zodiac 2446C GMT (Poor Man’s Autavia)

Zodiac is identical to Mark 4 Autavia, except that dial and movement are marked "Zodiac"