I recently rediscovered a Heuer stopwatch I had bought in the late 1960s for rallying. It has 3 buttons (2 + crown), split-action, a white face with 100 divisions (in black) and a red minute counter with 60 divisions (of course!) and a red hand. The 100ths hand and the split hand are both black.

The case is black with a chrome band and chrome buttons, crown, and ring. The only marking is the Heuer logo on the face.

If you know the model name or number I'd appreciate it. It seems to be running perfectly, but I suspect that after 35 years it could use a cleaning, so if you could recommend someone for the job, that would be great.

Thanks for helping!