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    ID and Dating of my Benrus watch??

    DaveS777 That post was a long time ago. I am not sure what you are asking, but I'll make a stab at it. Yes, you should always take the watch apart to all moving parts. If you do not have find replacement parts or make major adjustments, it takes about 3 hours to overhaul a watch. Some of...
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    A11 spec. no. 94-27834

    I know from the Hamilton records that they would make a contract for a few hundred watches to be delivered under specific specifications. For example, there were dozens of contracts for the 4992B master navigation watch. I do not think the government could change the specification for that...
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    A11 spec. no. 94-27834

    I think what he is asking has to do with the modifications made in the A11 specifications. For example, in September 1944 the specifications 94-27834-C were put out and said: Modification D came out in June 1945 and stated that the letter "D" be used on the back of the watch. I do not know...
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    Returning NAWCC Museum

    I look forward to seeing you again. We owe you so much for all the great work you have done for the Museum. Yes, we have many jobber catalogs in the Library that show tools. I shall be there most Fridays and I am happy to show you where things are located. Don Dahlberg NAWCC volunteer
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    Identify age of Hamilton 770.

    Is it one of these from the 1956 Hamilton catalog? There are lots of cases from this time that look similar. If we had a picture of your watch, it would help a great deal. As others have said, the 770 movement was introduced August 1, 1955. I know it was still being produced in 1958, when...
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    Can you ID the model name of this 1930's Elgin?

    For reference, here are the Factory Cased Elgins from 1929. Don Dahlberg NAWCC volunteer
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    Waltham Riverside 21 O Size

    Go to and put in your serial number. Don
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    Is Shugart the only option for pricing vintage wristwatches?

    The best way to value watches is to study the prices paid for identical or similar watches on internet auction sites like Ebay. Follow the auctions and look at completed auctions. Ebay keeps them on the site for 30 days. Be sure to notice condition, because it definitely matters. This...
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    Hamilton grade 753 movement info requested

    You also asked about precision for these watches. Wristwatches in common grades were not well adjusted or regulated. Before they were cased they had to keep time within 45 seconds per day over all positions and were regulated to -5 to +20 seconds per day. Once cased they had to keep time...
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    Hamilton grade 753 movement info requested

    Here is the first page from the Service Bulletin 206 Don
  11. D

    Hamilton grade 753 movement info requested

    Here is the information that you requested. Don
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    Help identifying a Gruen Curvex

    Sorry, but no photographs visible. Don
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    Double Sunk Dial Fell Apart

    What kind of dial? Porcelain dials were soldered together using a low melting solder, so a glue might be the best you can do. Don
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    Evidence of ladies wristwatch in the US in the 19th.C.

    The earliest I have for a ladies' Hamilton wristwatch is 1914. We do not have a 1913 catalog. The earliest I have for a men's Hamilton wristwatch is 1916. Of course, European imports would be coming in much sooner than this. Don
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    Price Guide Information

    Nick, Welcome to the board. The NAWCC, which sponsors this board, is a tax exempt organization and is thus forbidden by law from commenting on the specific value of horological items. That is why we asked you not ask for values when you signed in and at the top of each page. We can tell...
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    Wristlet or pocket?

    I think this site will help you date it within a half a decade. My quick reading says between 1918 and 1924 and I lean toward the early part of that. Don Dahlberg NAWCC volunteer
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    Which hamilton automatic 661 movement model watch is this?

    There were so many that looked alike from this era. Here is the K416 from the 1960 catalog. Don
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    Year hamilton watch was made by serial number

    What I posted are Hamilton records kept my Lowell Halligan, Vice President in charge of Sales. They updated this list every year until they stopped keeping such records with this last statement. So this is the most "official" and last list there is. Don Dahlberg NAWCC volunteer
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    Hamilton Watch Lookup

    Did you mean the number on the MOVEMENT is 2025003? If so, it is a 986 from 1919. Hamilton stopped keeping ledgers in about 1911 with serial numbers of about 840,000. They kept ledgers again during WWII for military watches. Don
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    Setting time on Radio? Citizen Urgg

    Many models are here and here But if 3450 is the model number, I do not see it. Don Dahlberg NAWCC volunteer
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Swiss Fake by Kent