omgiv Posted June 27, 2010 Report Share Posted June 27, 2010 Hi Guys, Can anyone tell me what calibers used a hairspring guard? I have been offered a movement with a 1570 automatic bridge but it has a hairspring guard. I have looked through my parts listings and see that 1560/1565's came with one but wasn't aware that 1570's did as well. Is this the real deal or is it possible that the movement is a 1565 with a 1570 auto bridge? Thanks in advance!!!!! Quote Link to comment Share on other sites More sharing options...
automatico Posted June 27, 2010 Report Share Posted June 27, 2010 I have only seen them on 1560, not on 1570...yet. The spring guard aka 'curb feeler' was a pretty good idea imho. You can tell a 1560 from a 1570 by the beat rates. 1560 = 18000 bph 1570 = 19800 bph Quote Link to comment Share on other sites More sharing options...
omgiv Posted June 27, 2010 Author Report Share Posted June 27, 2010 Thanks for the reply. I was thinking the same thing. I did a quick google search for 1570 and balance guard and found a link. It has a movement marked 1570 with the balance guard, but who knows if it is reliable. Doing some more looking, it looks like there is a hole in the same spot of the mainplate in all of the 1570's I looked at. I don't know if it is the same size or coincidence. I am hoping that it is a 1570 with added balance guard. They are taking it to a watchmaker to have the rate verified. Thanks again!!! Quote Link to comment Share on other sites More sharing options...
freddy333 Posted June 27, 2010 Report Share Posted June 27, 2010 The protecting spring for hairspring (part 7971) is only used on the 1560. The 1530 is the base for a number of 15xx movements, which is why the pillars on some 15xx movements appear to contain extra/unused holes/features. Quote Link to comment Share on other sites More sharing options...
omgiv Posted June 27, 2010 Author Report Share Posted June 27, 2010 Other than the rates, is there a way to distinguish the two? Thanks!!!! Quote Link to comment Share on other sites More sharing options...
omgiv Posted June 27, 2010 Author Report Share Posted June 27, 2010 I am trying to figure this one out until I can hear back about the rate. Does anyone know if a 1560/65 hacks? I was reading on the net that the 1560/65 was used until about 1967. Does this seem correct. Also, didn't the hack mechanism come out in the early 70's? The movement in question does indeed hack, so I am even more confused. I am hoping to hear about the rate tomorrow and will post the answer. Thanks and sorry for the ramble. Quote Link to comment Share on other sites More sharing options...
freddy333 Posted June 27, 2010 Report Share Posted June 27, 2010 As far as I know, the 1560 did not hack & was in production until the mid-60s. Quote Link to comment Share on other sites More sharing options...
freddy333 Posted June 27, 2010 Report Share Posted June 27, 2010 As far as I know, the 1560 did not hack & it was in production until the mid-60s. Quote Link to comment Share on other sites More sharing options...
freddy333 Posted June 27, 2010 Report Share Posted June 27, 2010 As far as I know, the 1560 did not hack & it was in production until the mid-60s. Quote Link to comment Share on other sites More sharing options...
freddy333 Posted June 27, 2010 Report Share Posted June 27, 2010 As far as I know, the 1560 did not hack & it was in production until the mid-60s. Mods - RWG hiccuped & my reply, as you can see, got posted multiple times. Please edit & thanks. Quote Link to comment Share on other sites More sharing options...
omgiv Posted June 27, 2010 Author Report Share Posted June 27, 2010 Thanks Freddy!!!! Quote Link to comment Share on other sites More sharing options...
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