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Re: *WANTED* Gruen Automatic Day Date CAL 2066 parts [message #3688 is a reply to message #3686] Mon, 12 May 2014 03:31 Go to previous messageGo to previous message
JackW is currently offline  JackW
Messages: 1333
Registered: May 2013
Location: Denver
Gruen Authority
General pain in the rear
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Nice looking watch. Bit late for my taste but that is neither here nor there. The Gruen Caliber number is 790 CD (CD=calendar date); you can see it on the winding weight. The base model is an A. Schild (AS) 2066 (under the balance wheel). A look around shows that these parts are easy to obtain; I looked in the Jules Borel catalog for one.

That said, there is also the fact that these came in split stem and solid stems. Which one do you need? I suggest that you seek out a new watch maker. I do work but I've a new job (I'm a geologist really) and am having time-management issues dealing with the watches I already have to fix. Timeticker is a good and a competent repair person; another hobbyist like myself. It is getting harder and harder to find professional watch makers that will work on these that don't charge an arm-and-a-leg. From what you said, you value this watch something fierce; you really should seek someone out to do the work for you. Likely it needs more than just a new stem (or crown). You certainly can pick up watch making and do'er yourself. I've been working at it for 4 years now and I'd say I'm marginally competent to do automatics (even worse on 6/0-size Walthams ;^) ), though the AS autos from this time period are all about the same. They seemingly all have a critical flaw in the winding module and I have run into the issue on all but one of the AS movements I've had the joy to work on. Variants of this movement appear under the Bulova, Elgin and Waltham brand names from the late 1950s/early 1960s. The issue is with the axle and bearing on the weight and most others that have worked on these all (I'd bet) to a person will tell you the same.

Let us know if I (or we) can help in some way.

Thank for sharing.


I do see in your 'Bio' that you are interested in Watchmaking. Also... Curious to see this clock of yours come to fruition. Anyway, Not sure how far down the path you have made it in to the watch making/repairing world. It is easy enough and can be done through some of the old self-learning courses. You can look these up on Google, but I'd suggest getting the Chicago School that our very own Mike Barnett sells (no we don't get commission; it is just that good). There is also the TimeZone school via the internet (though I skipped this in my early learning). The site has some great info, especially this one which covers the tools needed and discussion on the options.

Keep us posted on your efforts!

All I know is based on hard work & writing by others. I can only aspire to augment this body of knowledge. If I am wrong it is because of my own failings. -me

"If I have seen farther it is by standing on the shoulders of giants." - Newton

[Updated on: Mon, 12 May 2014 03:48]

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