Yes, the famous 7750 and derivatives

Jan 22, 2020,15:09 PM
 

I've had about five IWC's with that ébauche and all have been approximately +10 seconds per day. But, it is interesting to note that I had this antique recently serviced by my local watchmaker and it keeps much better time than all the other more modern ones.



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I find this to be the best Portuguese variant

 
 By: ripper444 : January 22nd, 2020-12:59
Including the modified valjoux over the new in-house. ...  

I agree

 
 By: India Whiskey Charlie : January 22nd, 2020-13:19
And I am saddened that the 3714 was replaced by the 3716. I happen to have the 3714-45 (IWC picture): ...  

That’s really nice looking as well

 
 By: ripper444 : January 22nd, 2020-13:40
When I was new to watch collecting I never looked at these. They were too boring! Now it’s beauty to my eyes as my tastes evolved. So clean!

Portuguese

 
 By: Weems@8 : January 22nd, 2020-13:36
Movements, watches, and IWC. The Portuguese is a great watch from IWC. I like the variations in dials, complications, and the watches who are inspired by the IWC model. My Baume and Mercier Classima is for example a kind of budget Portuguese. Movements, V... 

I had them all from IWC

 
 By: ripper444 : January 22nd, 2020-13:43
My experience is their in house with 8 day PR is not accurate at all. Their fly back like in the IWC Chrono is pretty well done and robust and their new cheAper in house are complete garbage. I owned both the brand new Chrono 41mm and the new spitfire on ... 

I have never had an IWC that kept good time...

 
 By: India Whiskey Charlie : January 22nd, 2020-14:25
And, at some point I had more than 20 of them. All modified ETA, modified Valjoux or in-house (8-day or otherwise) ran +8 to +15 seconds per day and none of them could be regulated by IWC in the US or in Switzerland. This, however, did not bother me that ... 

try co-axial

 
 By: Weems@8 : January 24th, 2020-16:25
My 8800 is not 100% accurate, but almost as accurate as quartz. 2 seconds a day.

Valjoux

 
 By: Weems@8 : January 22nd, 2020-14:30
Is that famous Valjoux movement for chronographs? My Longines have much similarities with that valjoux, but it is only a time complication without a date function. Model: Lindbergh second setting, Wheems series. To big for some watch lovers. 46,5mm case d... 

Yes, the famous 7750 and derivatives

 
 By: India Whiskey Charlie : January 22nd, 2020-15:09
I've had about five IWC's with that ébauche and all have been approximately +10 seconds per day. But, it is interesting to note that I had this antique recently serviced by my local watchmaker and it keeps much better time than all the other more modern o...  

My PD IWC keeps good time

 
 By: cazalea : January 22nd, 2020-16:32
Yes, ok this is mecha-quartz! I've had about 10-12 IWCs and still have 5-6-7 I forget. But I'm sticking with these two which are 7750-based and run great. And this I don't wear often or long enough to know if it keeps time... Cazalea ...  

Interesting how everyone's experience can be so different...

 
 By: India Whiskey Charlie : January 22nd, 2020-17:12
I too owned the GST perpetual titanium just like yours and it was the worst timekeeper of them all. It was serviced three times and IWC could never get it right. That's aside from the perpetual calendar issues I had...🙄 ...  

I agree. [nt]

 
 By: VMM : January 22nd, 2020-13:58

My time

 
 By: Todd B. : January 22nd, 2020-18:47
I have three IWC and all three keep time just fine. The 8 day portofino I’ve heard on the board here and there that it’s horrible at keeping time but I’ve had zero issues in that regard. That goes as well for my Aquatimer and also my Port 150 year. Of cou... 

Right IWC design is great. All modified ETA by them run well for me and keep great time. It’s hit or mis on in house

 
 By: ripper444 : January 22nd, 2020-21:05
Then again it doesn’t matter if you don’t care about that. I love how classic this design is and that’s really what I own this one for!

Underappreciated

 
 By: bchankai : January 22nd, 2020-23:37
Despite its popularity and over two decades of production, it seems that little attention or appreciation is given to the modifications needed for the 3714’s movement. The repositioning of the subseconds from 9 to the 6 o’clock position is not earth shatt... 

Prefer no Chrono. YMMV. (nt)

 
 By: Ronald Held : January 23rd, 2020-11:14
NT