A larger and less common sibling to the oval shape Geneve Dynamic line most collectors are familiar with, these square case Geneve and De Ville models were produced for over a decade and have a style and variety of dial options entirely unique to themselves. [..]

Visit A Full Guide to the Giant Square Geneve & De Ville Dynamic Family 166.081 / 166.145 to read the full article.

 

Nice one! I often wonder when writing these how many of the obscure references are in people’s collections that we just don’t see that much as they don’t get mentioned all that much. Really cool pieces though and personally I prefer these over the oval case Dynamics on the wrist.

 

No, 563 is also correct I’ll update to correct that as its just the 17-jewel version of the 565, effectively its the 565 for the US market but I’ll make sure that’s added thanks for reminding me.

The weird movements I’ve seen in it are 751/752s, 562s, 560s and things like that are definitely wrong.

 

The weird movements I’ve seen in it are 751/752s, 562s, 560s.

Weird yes, but readably available.

 

It was for other case references like the oval cases, the square case 166.081 / 166.145 are date only and were produced at the end of the 60s through to the 70s so only 563/565 are valid. The trouble is people take Day-Date dials and movements from other Geneves and drop them in, while they fit they sit incorrectly since the 75x movement is 0.5 mm thicker

 

The only two I’ve seen both had NOS round case 75x dials and because of the extra movement thickness they were sitting in a way that you could see the copper part of the movement around the edge of the dial and they had crystals with no tension ring on them, not sure if that’s because the OEM crystal didn’t fit with the ticker movement or because they were aftermarket crystals but either way the watches were clearly not correctly assembled and incorrect yea