HEUER AUTAVIA Ref. 2446C 

The 2446C is the second generation manual-wind Autavia. Its a handsome tool chronograph with a 40mm case with attractive beveled lugs and a bidirectional rotating bezel.
The C designation on the 2446C stands for compressor. This means, that the back tightens more as the watch is subjected to water pressure.
The movement is the Valjoux 72, which is one of the most celebrated manual-wind chronograph movements ever created.
The acrylic crystal should be flat with beveled edges. It is difficult to source a replacement and many of these watches have a domed crystal.
While the original screw-back Autavia was produced for about seven years and the Cal 11 and 12 models were made for an impressive 16 years, the 2446C was only in the catalogs from 1968 to 1971.

Condition report:

Dial: original dial in very good condition, showing some small signs of age.

Movement: overhauled in 2017, all functions perfect, running strong

Case: some dents and scratches due to general use

Bezel: nice condition, minor signs of wear

Crystal: original crystal no replacement!


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