A Tag Heuer Formula 1 Chronograph watch.
Model: CAZ101K
Serial: WZZ1978
Case Material: Steel
Case diameter: 43mm
Dial: Blue
Numerals: Arabic/Baton
Movement: Quartz - Ronda
Functions: Chronograph, Date
Strap: Steel
Buckle: Folding
Box: No
Papers: No

Condition Report
The watch is worn with signs of wear consistent with age.
Currently un-tested with no signs to suggest it is anything more than a battery change 
Glass is clean