Bignasty Posted August 14, 2006 Report Share Posted August 14, 2006 Alright I'm tired of seeing these movements being inaccurately identified. Maybe it comes from ignorance so I'm here to help alleviate that issue. There are several ways to identify a 7750 movement. We all know there are at least three different models out there of this widely used movement. So no one buys a so called Swiss movement off of Ebay or worse buys one from here I've made this quick and easy tutorial. 1. Old Asian 7750 (AKA 7750a or 7750b) which runs at 21,600 vph. I personally have had no luck with this movement. I've owned three reps thus far with this movement and all 3 had issues. 2. Genuine ETA 7750 (AKA Valjoux 7750) which runs at 28,800 vph. I've only owned one of these but it ran and reset perfectly. 3. New Asian 7750 (AKA 7750b1) which runs at 28,800 vph. I currently own 2 of these movements. Both function properly and keep excellent time but other members have reported issues. Overall seems to be a bit more reliable than the previous Asian copies. Alright so now I hope everyone knows which movement is which by simply glancing at a few pics. Cheers, Jon Quote Link to comment Share on other sites More sharing options...
neuhoover Posted August 14, 2006 Report Share Posted August 14, 2006 Sweet! Great post. I learned something tonight. Thx! Quote Link to comment Share on other sites More sharing options...
SuperTacks Posted August 14, 2006 Report Share Posted August 14, 2006 That is a fantastic post. Now will need to pry off some casebacks and begin the hands on portion of this tutorial. Try to see some of this movement myself. Thanks Bignasty. Quote Link to comment Share on other sites More sharing options...
mikellem Posted August 14, 2006 Report Share Posted August 14, 2006 Thanks Bignasty, Great Post ! Thanks for the great education... Always appreciated.. -MM Quote Link to comment Share on other sites More sharing options...
Bignasty Posted August 14, 2006 Author Report Share Posted August 14, 2006 (edited) Thanks for the comments guys! Jon Edited August 14, 2006 by Bignasty Quote Link to comment Share on other sites More sharing options...
KB Posted August 14, 2006 Report Share Posted August 14, 2006 Great post BN, one that many of our members will find helpful. Ken Quote Link to comment Share on other sites More sharing options...
dec Posted August 14, 2006 Report Share Posted August 14, 2006 Excellent. My only guide so far has been "eta logo or not"... Quote Link to comment Share on other sites More sharing options...
crystalcranium Posted August 14, 2006 Report Share Posted August 14, 2006 How come I was able to use the non functioning regulator on the old style asian 7750 to get a 60 sec fast/day Broad Arrow down to +-5 sec/day??? Quote Link to comment Share on other sites More sharing options...
djtimodj Posted August 14, 2006 Report Share Posted August 14, 2006 very good post !!!!!!!! Tim. Quote Link to comment Share on other sites More sharing options...
Pugwash Posted August 14, 2006 Report Share Posted August 14, 2006 How come I was able to use the non functioning regulator on the old style asian 7750 to get a 60 sec fast/day Broad Arrow down to +-5 sec/day??? I believe BigNasty was saying that the fancy arrow lever bit is only for show. The regulator still regulates though. Quote Link to comment Share on other sites More sharing options...
Rikske Posted August 14, 2006 Report Share Posted August 14, 2006 Thanks , Bignasty , very informative post. Quote Link to comment Share on other sites More sharing options...
Mano74 Posted August 14, 2006 Report Share Posted August 14, 2006 usefull info indeed Quote Link to comment Share on other sites More sharing options...
Dario33 Posted August 14, 2006 Report Share Posted August 14, 2006 Very useful info - should be made a sticky. Quote Link to comment Share on other sites More sharing options...
Russtang Posted August 14, 2006 Report Share Posted August 14, 2006 Excellent post Jon! I second the "Sticky" request. Quote Link to comment Share on other sites More sharing options...
Bignasty Posted August 14, 2006 Author Report Share Posted August 14, 2006 Again thanks for the kind words! Jon Quote Link to comment Share on other sites More sharing options...
KB Posted August 14, 2006 Report Share Posted August 14, 2006 Very useful info - should be made a sticky. Actually I like this suggestion but I wonder if it should be pinned here or in our knowledge base forum, I am going to discuss this in Admin and.....................I'll be back. Ken Quote Link to comment Share on other sites More sharing options...
TomBombadil Posted August 14, 2006 Report Share Posted August 14, 2006 Great post Jon! This is a great reference. Quote Link to comment Share on other sites More sharing options...
Penguin_M Posted August 15, 2006 Report Share Posted August 15, 2006 Thank you very much sir!!! Quote Link to comment Share on other sites More sharing options...
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