Hi all, I picked up a pair of stopwatches that I'll be putting in my Porsche. Both function but I would like to disassemble, clean and lube the movements. I have worked on one automatic before, so I'm not a total beginner, but pretty close to it.
I requested a quote from a local watch specialist but most likely the service charge will be much more than one of these would be worth even if it was just serviced. So I'm leaning towards doing the service myself since it's a pretty uncomplicated movement. I've been looking around for any sort of reference material but all I can find is a youtube video of a guy showing how one is supposed to function. Do any of you have sources for mechanical information on this movement?
These both have the Heuer 7700 movement, 7 jewels. From what I can gather, they're likely 1970-1071 model#403.201 1/5 second timers. One has additional text on the dial, and the other has some yellowing of the crystal. Toying with the idea of getting two new faces that match, if possible.
Many years ago, people would mount between 1 and 4 stopwatches on their dash for road rally and other timed motorsport events. I feel it's a neat function even if I wont be racing the car. I'll admit it's mostly aesthetic, but hey at least I'm honest about it.
They'll be in a simple arrangement, somewhat like this.