- Valjoux 7765 manual-winding chronograph movement with 60sec, 30min and date indication at 3.
- 17 jewels, 28800 A/h, 52 hours of power reserve.
- Black PVD coated bronze case with screw-down steel caseback in very good condition, showing some wear due to age.
- 40 mm (without crown) / 42 mm (lug-to-lug) / 12 mm (thick) / 19 mm (between lugs).
- Original unsigned winding crown in excellent condition.
- Original chronograph pushers.
- Mineral crystal in great condition, probably the original one.
- New khaki-green canvas strap with brushed steel buckle.
- Original black dial in excellent condition with luminous dots next to markers.
- All original hands with original tritium filled with lume on hours and minutes.
A bit of history on the Heuer 13-1 (excerpt taken from HeuerWorld):
The Heuer 13-1 featured in the 1979 catalogue along side other less familiar references but along side the classic Autavia and Carrera. By this time Heuer, like many other Swiss watch companies were feeling the full force of the quartz invasion. To compete on price Heuer added their own quartz range diver in a variety of sizes including for ladies as well as some new low cost mechanical chronographs in such as the reference 12, 13-1 and 1611. The later did not last long as the divers proved to be a great success so they are seldom seen and not highly coveted by collectors.