omgiv Posted May 29, 2010 Report Share Posted May 29, 2010 Hi Guys, i think I have pretty much decided to go with a 1570 on my GWSD project. i know it will take a lot longer to fund, but I think that I will enjoy it more in the end. I know that there have been some problems when it comes to some 1570 calendar rings. I don't know if that goes for all of the cases or just the Yuki cases. I am leaning towards the NDT case but might be persuaded to use the JAW case if it is more accurate for a GW. My question is how to tell what calendar ring the movement has if it is a movement only. I believe that the 1500 series movement is what I want and that the 1600 is too big. I just don't know how to tell. Does anyone have any measurements or pictures? Thanks!!! Quote Link to comment Share on other sites More sharing options...
Ronin Posted May 29, 2010 Report Share Posted May 29, 2010 For guaranteed compatibility you want the FLAT ring like this (from 1500's. true TOOL Rolexs (1680, 1665, etc). Notice the 1/2 mm from the edge of the retaining ring and the base movement: The others have a date ring that extends out further then SLOPES down at the outside edge for the pie-pan dials. YOU CAN USE THESE, but you will need to remove it and grind the sloped edge back with a Dremel or other tool. Notice how the slope extends almost to the edge of the base movement. Here is the (less than optimal) sloped edge for comparison (from 160x DJs): Quote Link to comment Share on other sites More sharing options...
freddy333 Posted May 29, 2010 Report Share Posted May 29, 2010 The calendar ring is made for a specific movement, not the watch. In theory, the calendar ring on a standard 1575 (the '75' denotes the movement has a date complication) should fit any of the aftermarket cases made to fit a 1575. If you use a different movement, then you may run into problems. Quote Link to comment Share on other sites More sharing options...
freddy333 Posted May 29, 2010 Report Share Posted May 29, 2010 Ronin is right (I stand corrected). I responded from memory instead of checking. Rolex specs 4 different calendar rings for the 1575. Quote Link to comment Share on other sites More sharing options...
omgiv Posted May 30, 2010 Author Report Share Posted May 30, 2010 Thanks for the information and the pictures! That should help me make the right decision when the time comes. Thanks again for the quick info!!! Quote Link to comment Share on other sites More sharing options...
stilty Posted May 30, 2010 Report Share Posted May 30, 2010 You'll need one that is 26.6mm in diameter. in Ronin's pics is of the GMT and is 27.20mm. That one won't fit as it will be too tall and the stem will not align. It always cracks me up (not really) seeing sellers on eBay offering 1570's saying they are for 1680, 1665, etc when they are just pulls from 160X datejusts. They do not fit and they are just taking advantage of unsuspecting buyers. Quote Link to comment Share on other sites More sharing options...
omgiv Posted May 30, 2010 Author Report Share Posted May 30, 2010 Thanks for the comments Stilty. you don't happen to have a pic of one with a 26.6mm diameter do you? Also, does this one look correct? Thanks!!! ] Quote Link to comment Share on other sites More sharing options...
stilty Posted May 30, 2010 Report Share Posted May 30, 2010 Yes, that is correct. GMT had 3 rubies on top, and the standard only as 1 ruby. That is the easiest way to spot the difference. Anyone have a 27.2mm, 3 ruby part, let me know! Quote Link to comment Share on other sites More sharing options...
omgiv Posted May 30, 2010 Author Report Share Posted May 30, 2010 Thanks again!!!! Quote Link to comment Share on other sites More sharing options...
coolfire Posted May 30, 2010 Report Share Posted May 30, 2010 Thanks for the comments Stilty. you don't happen to have a pic of one with a 26.6mm diameter do you? Also, does this one look correct? Thanks!!! ] Is it me, or does the DW in your pics look like champagne gold? And thanks Stilty for the info! Quote Link to comment Share on other sites More sharing options...
Ronin Posted May 30, 2010 Report Share Posted May 30, 2010 Good catch Stilty, the pics I posted are for the 4 hand GMT (1675) 3 Ruby. So, yes that ring should be 'cut/ground' back even further. I guess-- long story short, buy something in you budget be it 150x, 160x, TOOL 1680 1665, and worse case grind it back to fit. I went the 1603 route, because I grabbed the whole watch for a deal, then took it to an AD and had the movement serviced while in the DJ case. I am not worried, and have the skills to pop the DW ring and grind it back as needed. In my case I have a serviced movement actually keeping COSC via an AD for LESS than what most people are selling RAW movements. What WE REALLY NEED, is someone like JMB or Stilty to create just these rings. Imagine the interchangeability options. Quote Link to comment Share on other sites More sharing options...
Ronin Posted May 30, 2010 Report Share Posted May 30, 2010 Is it me, or does the DW in your pics look like champagne gold? And thanks Stilty for the info! Looks like incandescent lighting on Silver. Quote Link to comment Share on other sites More sharing options...
omgiv Posted May 30, 2010 Author Report Share Posted May 30, 2010 The seller did say that it was a silver date wheel. One last question, should a rail dial 1665 hack? I think that rail dials were about 5.7-6 mil serial numbers. Thanks!!!! Quote Link to comment Share on other sites More sharing options...
Ronin Posted May 30, 2010 Report Share Posted May 30, 2010 The seller did say that it was a silver date wheel. One last question, should a rail dial 1665 hack? I think that rail dials were about 5.7-6 mil serial numbers. Thanks!!!! Yes. Mid-70's on up hacked. My 1974 DJ 1575 Hacks... Quote Link to comment Share on other sites More sharing options...
omgiv Posted May 31, 2010 Author Report Share Posted May 31, 2010 Thanks again!!!! Quote Link to comment Share on other sites More sharing options...
dbutlerman Posted September 8, 2011 Report Share Posted September 8, 2011 I just found this thread! Very useful. Does the ring just need to be brought in, more space between the edge of the case and the edge of the dial? Quote Link to comment Share on other sites More sharing options...
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