Here is a couple of quick pics of the movement I have ready to go in my franken 15200. See how nicely it fits in the genuine Rolex case. You gotta love the finish as well! 100% swiss movement! Movement is eta 12892, which is no longer produced. circa 1985, so it is over 20 years old. this movement is NOS and I picked it up for $70 USD. New, never used, but will require a full service and lube job due the age of oil, or lack of. Although, I was told the oil in this movement is synthetic and it should still be fine. Currently the movement is running -2 seconds in Pos. 1. There are a few of these movements out there that are tested to 6 positions and are COCS certified. This one isn't but is looking good so far.
Yes, more costly then a modern 2824-2 if you include the cost of a service, but what I like about this movement is the size, 12.5''', same diameter as Rolex and no need for spacer ring. Also, a larger rotor, so you can really feel it winding. Hand winding is super smooth, and very close the feel of a Rolex movement. I find 2824-2 and 2836-2 movement very stiff to wind. Winding this movement is effortless. Downside is you have to replace cannon pinion, hour wheel, and fourth wheel, but no big deal if you are doing a full service. Parts are available from either Ofrei of Julesborel. I have everything ready to go for this project except the dial.