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Hello and good day to all, I’ve had some difficulty with my Omega Speedmaster reduced overhaul, Cal 1141 with the Dubois Depraz 2020 module. I overhauled the ETA 2890-a2 last year but didn’t do the chrono at that time. Recently the pushers were sticky, and I decided to overhaul the module. *disclosure” I am not new to watch hobby, but still don’t have a sonicator. I used lighter fluid to clean the Dubois module and followed Mark Lovic’s excellent reassembly procedures—No problem with reassembly. The watch runs fine without the chrono engaged. The chrono starts but stops after about 15 seconds of running. I disassembled again and this time cleaned with Kleen strip low-odor paint thinner. I was extra careful during rebuilding, but still managed to lose the second pinion friction spring, (part 471 60.131 in the Omega 1141 technical sheet). That’s right I lost the spring. I looked for it, but I have carpet and so I gave up…moving right along. I know it’s impossible to get the DD module parts unless you buy a whole module from somewhere, but I discovered that needle threader is a good gauge and thickness to make a spring, so that’s what I did. After cutting and bending it seems to fit quite well. I continued the reassembly, and the watch runs fine, but once again when I engaged the chrono, it starts but stops after about 15 seconds in the same way it did before. I don’t think the homemade spring is the problem. What do you think it is? I suspect I need to clean the movement better as I don’t think the DD module is very forgiving of any drag once the power is transferred into the DD module. I welcome any feedback.