noirrac1j

Agree.

Omega Seamaster Co-axial chronometer....Not too shabby an entry! J

Yes this one has three mag windows in the crystal...I used to have one of these but sold it a while ago. J

We'll need a pic of the completed piece! Joe

Yes, the seconds are friction fitted and can be removed using a pair of hand levers or .80mm screwdrivers inserted into the small slots seen in the picture. Apply steady, upward pressure...not too much because the seconds disc may warp if you push up too hard. Slow and steady. Here a link to a jump hour overhaul I did a few years ago

Its great to have so many knowledgeable people to learn from, yes? I've rewound a few mainsprings the wrong way in my day, and its something that one learns to quickly be very careful about because you have to take most of the watch apart to get to the mainspring. If you just starting out, take a picture of the mainspring orientation as soon as you open the barrel, and that way you can figure out which way it is supposed to be rewound once you get everything clean--very helpful especially with auto-winding mechanisms. J

The image shows a left winding mainspring. Welcome to the forum! J

I also clean balance assemblies in Naphtha (lighter fluid() and it dissolves all crud and dries with no residue--just work with lidded jars and in a ventilated area. J

Very nice Heuer Chrono "leftie"! What powers it? Cal. 11? J

Yes I forgot about those pesky Brac and Ronda pin levers. Its a nightmare trying to gear train plates on those things. J

Its more than a bit different, it IS different! I've not not seen a jeweled pin levers besides the widely available Baumgartner and Bettlach calibers. I like your post...thanks. J

Yes, you really need to use a crystal press or it will not seat properly. You MUST use a crystal press. J

Doesn't Tianjin make chronos? I believe they're called Seagulls, but this isn't one of those. You are correct JDM, the subdials on the movement I suggested usually indicate day of the week, month or some other thing like lunar cycle. IN the case of this faux Speedy, it is possible they simply spin around with no real elapsed time function--looks that way from the photo too! Joe

The watch isn't authentic, but you probably knew that. You might be able to find a replacement Chinese chrono movement.

Haven't had much time because of work to follow up on this project, but today I drilled the dual holes into the case....I have to order the plexi and then ask @bjd1020 to try printout out a case back, although I might also try out a stainless steel caseback from a similarly sized watch. J