![]() ![]() I believe they didn’t change the pallet except on the new models so I think I’ll be OK with the impulse on this balance. The collet is a little different but it has the same amount of coils and the same termination area as far as I can tell so I think I’m going to pull the trigger on that and hope for the best. it is out of a 400 series and I think they’re all pretty much the same with minor differences such as a different collet. I think I found a balance with hairspring from Blake at scotch watch. Thank you I had the first couple documents but that last one gives me so much information on the servicing of the movement. 1 download Zenith 410 El Primero.pdf 6.77 MB.hope they are of some use to you in you endeavour cheers Hi Ihave attached the following documents on the Zenith, There seems to be nothing specific on the 411 as the base caliber is the 400/410. This is all the information I can think of off the top of my head but if you need anything else let me know. ![]() It has 100 teeth on the fourth wheel (400z series is different)Ģ1 teeth on escapement (400z series is different) ![]() I’m either going to buy a balance complete with cock or balance with hairspring. Any help from anyone out there who could help me refine which one. The balance number on all the technical sheets I have is 721 and if you go to cousins they have 721 balance completes available but they have different variations and I’m unsure which one to order. I am finally getting to repair it and I found some balances but there’s so many ancillary part numbers and I cannot find a sheet to pinpoint exactly which one to purchase. The reason I need it is broke the balance pivot. Hello, I have an old zenith 411 which is basically a 410 without moon phase only used by Concord in the impresario as far as I can tell. ![]()
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