I have recently inherited the dash timers from my grandfathers MGB that were in the car when he was killed in around 1965/66. I have attached some photos to see if there is anything that people more familiar with these timers can observe, I am hoping to find out more information about them and clear up some questions that I have about them. What I do know is that the 3 button stop watch on the right has a serial number H14156 and the words E.D. Heuer & Co 7 Jewel inside the back cover. It looks like an early 60's Monte Carlo from all the photos I have seen but strangely is missing the Monte Carlo logo on the dial that normally sits above the Heuer logo. Unfortunately this piece is missing the original button and shaft that was deleted on the 2 button models and is currently not running. On the positive side with the back removed it looked exactly like the comparison photo of the earlier model 3 button Monte Carlo and the watchmaker that opened said it looked in very good condition inside with no corrosion and demonstrated that it should be able to return to working condition with the mechanisms moving properly upon inspection. Unfortunately the watchmaker wasn't familiar with these timers and couldn't give any further information about the piece other than it was a "very nice looking pair".

Would this be a genuine Monte Carlo and would it be worth trying to get operating again with replacement parts for the missing button? I notice the dial has browned much more than the Master Time but would be hesitant to touch it, is that the smart thing to do?

The Master Time I have less concerns about, it is still operational and has kept perfect time since being set to the time and wound up by the watch maker 8 hours ago. It has a small number 63 on the dial under the shaft that holds the hands. Would this indicate a year of manufacture? As it was working this one wasn't opened and we kept it attached to the backing plate.

Finally the double backing plate appears in good condition with a stamping in the back that says E.D. Heuer & Co with Swiss underneath. There is a fine scratched number above the stamping that is hard to see with the naked eye but seems to read close to 180752212 or 180/52212. It was a brushed finish on the back and is the same shine on the front as the time pieces with little tarnishing.

I hope that there is someone out there with an enthusiasm for these pieces that can help with the oddity of the missing Monte Carlo logo and have a guess at the authenticity of the pair as an original Rallye Master pair and if I should have them repaired, restored or left alone.