I just lately labored on this Zenith 146D. It’s a captivating two-register motion and effectively made, as you’d anticipate from a producer comparable to Zenith. It was most likely made within the early 60s, and is in actually glorious situation contemplating its age. Check out the tip for the watch cased up.
The crown was lacking from the watch when it arrived and you’ll see that at lot of grime and mud can work its approach via what looks as if a really small hole. Flecks of grime had been all over the place on the motion.
Right here is an instance of additional cleansing that should be accomplished after the elements have been via the cleansing machine. Some cussed corrosion and oil reside left behind which wanted to be manually cleaned away. If this was left the clear oil would instantly be made soiled and will result in extra put on over time on this vital a part of the watch which endures a whole lot of stress anyway.
Some marks on watch actions are regular and to be anticipated from use, for instance the plating sporting away on the plates the place the 2 winding wheels contact. Put on right here is inevitable however might be decreased to a minimal by cautious utility of oil.
An instance of marks not attributable to put on an tear are scratches on the highest plate; these ones have very clearly been attributable to previous repairers utilizing unsuitable instruments to place the column wheel jumper into place. It’s not onerous to make use of pegwood for this job which is able to go away no marks behind, and ought to be customary observe.
As soon as the chronograph mechanism is totally reassembled the watch might be examined as an entire motion earlier than being cased up for a last check interval.