Thanks for the kind words!
Added 2-14-17
Fitting bezels on 5512/13/1680 etc:
1...If you plan to do much crystal fitting, you will need a precision digital caliper, not a $12.99 cheapo, a good one...if you do not have one already.
2...Measure the OD of the crystal after it is pushed down on the case neck...write it down. Measuring a loose crystal is usually not going to give an accurate measurement.
3...Measure the ID of the inner (crystal retaining) bezel...write it down.
4...The inner crystal retaining bezel needs to be around .1mm to .2 mm smaller than the crystal (measured on the watch).
5...Use a heavy duty bezel press with metal dies if possible, plastic dies are usually too flimsy. You will soon develop a 'feel' for proper fit. Mine is an old Japan made 'BB' press from way back and now reproductions are available at 'affordable' prices.
Here are BB styles with tapered and straight wall dies and you can find these presses at reasonable prices if you look around. The second listing has a much better price.
http://www.jewelerssupplies.com/product12034.html
http://collectionsmall.stores.yahoo.net/wacaprcrprwi.html
Here is a cheapo model that might be Ok: https://www.amazon.com/Watch-Crystal-Press-Watchmaker-Repair/dp/B000RB3HRU The frame is probably made out of 'pot metal'. BB type bases are made out of cast iron.
The general rule is cheapo tools = broken parts....but not always.
Imho...
Genuine crystals are over rated, especially on project watches. I have used GS crystals for 40 years and never had any problems and their crystals for vintage no date submariners come in 4 or 5 sizes. Sternkreuz are Ok too but sometimes not a precision fit.
Like I said many times before...when you find a crystal that fits...buy 3 of them. Many no name 'internet' crystals are out of spec, sometimes from one batch to the next.
Many no name internet bezel kits are not too hot either. The better sets come from Clark, watchman408 (on eBay) and ST in my experience. Better = they fit.