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Home » The Gruen Model Database » The caliber database » The Caliber ... [I guess I get to name it, but I'm just speechless right now] (17''' experimental PW caliber)
Re: The Caliber ... [I guess I get to name it, but I'm just speechless right now] [message #14315 is a reply to message #14314] Mon, 11 January 2021 03:01 Go to previous messageGo to previous message
thesnark17 is currently offline  thesnark17
Messages: 654
Registered: January 2017
Gruen Master
So, the height difference is contained entirely in the bridges. The bottom plate is the same thickness in all V-series watches. And also the LV-series (which also has an overall thickness of 4.0-4.1 mm. I just checked.)

I decided to measure one more thing: total height of the center wheel. It protrudes from both sides of the watch - and if the difference in thickness is important, it must be a part of it.

So here you go, center wheel measurements:

V1 Suisse 5.9 mm
V4 ex 1 6.2 mm
V4 ex 2 5.9 mm
V4 ex 3 6.0 mm
V4 ex 4 5.9 mm

LV1 5.75 mm

UV 4.9 mm

V? Grade Unknown 5.2 mm

Perhaps this movement was meant to prototype for a true Very-Verithin model? I recall a mention or two of a special movement in the Very-Verithin advertising, but never gave it credence. On the other hand, this is a *single movement*. Hardly a whole line of movements. And unfortunately its case is long gone.

I think I shall christen it Grade V2.25. Whatever it is, it's definitely intermediate between the V2 and V2 1/2. What better name than V2 1/4?

Also, I'm very glad that it runs and has a good staff. At this point it wouldn't surprise me if the entire train and barrel were custom...

[Updated on: Mon, 11 January 2021 03:02]

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