Hamilton 992B Serial Numbers

piedmontg

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I have spent this morning looking for what I was sure was a fairly simple table. A table that had the Cxx..xx - Cyyy..yy year, for each year of production. I did learn that such list would be approximate since watches were not necessarily completed in numeric order. I looked through the Hamilton Sticky threads and found threads on individual years as well as sub years. Did various searches with no result. There are lists in some of the price guides but they in some cases are really at odds with the pocket watch database. Obviously I can just feed a number into the pocket watch database and get a result, but what does it use as a source? At the bottom of the page it notes 1953 Hamilton serial list, which cannot provide post 1953 information.

I tried the research route, but for 992B every serial number I typed in gave back the identical line of information.

I gather there are records for hamilton 992b that show when they went to the finishing phase, how do I get access to those? I do not mind doing the work, just need a bit of a push in the right direction.

Bob
 

Jim Haney

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piedmontg

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Jim

Thank you for the pointers.

Then I should assume that the actual date of a 992B vs its serial number is somewhat unknown much past the early 40's. The dates shown when using the Pocket Watch Database, may be derived from multiple sources. If that database says a watch is from 1961 or 1965 for example it must be via some sort of interpolation, not a hard fact.

The oldest price guide I have is from 1999 and its number vs date does not match up with the Pocket Watch Database. Maybe I need to find one from the 70's and 80's just for comparison and to allow me a closer age guess.

Given I am just a couple of years into collecting unless there is clear written information I am going to need to bracket age information. So collecting based on a year for a specific watch like the 992B may not necessarily be a practical primary parameter criteria.

Bob
 

Jim Haney

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Bob,
These 992B are very popular now because alot of collectors would have been born in the years of their production if you have a serial number like C280000-C300000, I feel fairly certain that watch would have been made in my birth year of 1949. I have most of the Price Guides and the last one was 2018 and the chart in it is consistent with Hamilton productions records. I have alot of 992B boxes with the Factory end labels and I have some with sales receipts and have seen some others with sales receipts that Terry Hall & Robert Sweet have and the later years 992B productions charts in the Price Guide are reasonable, however if you are not convinced about the YEAR you will have to have a sales receipt with the serial number on it and even at that, it may be 1-2 years off because the Jeweler may have had it in Inventory for that long.
 
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179

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I have spent this morning looking for what I was sure was a fairly simple table. A table that had the Cxx..xx - Cyyy..yy year, for each year of production. I did learn that such list would be approximate since watches were not necessarily completed in numeric order. I looked through the Hamilton Sticky threads and found threads on individual years as well as sub years. Did various searches with no result. There are lists in some of the price guides but they in some cases are really at odds with the pocket watch database. Obviously I can just feed a number into the pocket watch database and get a result, but what does it use as a source? At the bottom of the page it notes 1953 Hamilton serial list, which cannot provide post 1953 information.

I tried the research route, but for 992B every serial number I typed in gave back the identical line of information.

I gather there are records for hamilton 992b that show when they went to the finishing phase, how do I get access to those? I do not mind doing the work, just need a bit of a push in the right direction.

Bob
 

piedmontg

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Jun 14, 2009
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Jim

I have 11 of them. Dates from the data base have them scattered from the 40's to late 60's. I know when two were purchased, the one that belonged to my wife's father in 1941 and her uncle in 1946. No receipts but her father purchased both of them. The only other one I know is close is one my wife purchased for me over 25 years ago for Christmas when I was into outdoor steam locomotive building and running. I took it to a local jeweler for cleaning. Turns out the person who cleaned the watch was the former owner of the store. When he gave the watch back to me he told me he had sold it in 1945 and had all the service records on it. At the time I did not think to ask him for a copy of them. I was not into collecting and it was just a fine watch to me. The others just have dates from the Pocket Watch Data Base. The later years seem to be more the issue. For example I have a C510643, data base says 1967 whereas the 2018 price guide would put it in 1960 to 1963 range.

Like I said I am going to just focus on other criteria like signature style, case, and dial that are a "bit" more concrete.

Bob
 
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Jim Haney

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Bob,
We know that the last one made (Not counting the 4992B & 950B dials plates in the 1970's)and presented to the President in 1969 C529xxx and we also know that in the last 10 years 1960 to 1970 only 30K watches were made, so average out the 30,000 over 10 years and in the last few years the average would drop off considerably, so any watch in the C500,000 to C529,000 would be in the 1960-1970 group and very few would have been made or sold from 1965-70.

If you focus on Cases & Dials you may be disappointed because of all the switching going on.....
 

Jim Haney

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This is a chart from the IHC web site and may be questionable, but it is what it is, and better than we have in the Price Guide or the Pocketwatchdatabase.

C001-C13000..............................1940-1941*
C13001-C37900..........................1941-1942
C37901-C62800..........................1942-1943
C62801-C87700..........................1943-1944
C87701-C112400 .......................1944-1945
C112401-C137500......................1945-1946
C137501-C175000......................1946
C175001-C199800......................1947
C199801-C254500......................1948
C254501-C281400......................1949
C281401-C310200......................1950
C310201-C352800......................1951
C352801-C385800......................1952
C385801-C408300......................1953
C408301-C415500......................1954**

C415501-C423600......................1955
C423601-C441700......................1956
C441701-C448400......................1957
C448401-C455000......................1958
C455001-C461700......................1959
C461701-C468400......................1960
C468401-C475000......................1961
C475001-C481700......................1962
C481701-C488400......................1963
C488401-C495000......................1964
C495001-C501700......................1965
C501701-C508400......................1966
C508401-C515100......................1967
C515101-C521800......................1968

C521801-C525300......................1969***

All with "4C Prefix".....................1970****


* According to a Hamilton sales catalog the new 992B was planned for public introduction October 15th 1940.

** Last Officially Recorded Numbers, compiled from Hamilton Factory Records on the John F. Gelson Listing.

*** Taking into consideration the highest known number C525258 which is also rounded to next hundred.

Colonel George E. Townsend stated that the last Hamilton Railroad Watch was a 992B bearing C525169 movement number. That one was reported to have been cased and presented to Hamilton Watch Company President Arthur Sinkler in December of 1969 marking the end of regular production. Interestingly, we have documented a higher 992B production number C525258 thanks to Samie Smith, scroll down below this posting to see an image displayed. But as you'll read below neither C525169 or C525258 was really the end, there were post-production 992B movements assembled.


The reason for formulating and publishing the above listing is to reference Hamilton information previously available in the Gelson List and then also provide a year-by-year movement number "guesstimate" heretofore unavailable for the remaining years of Hamilton 992B Watch Production. Hopefully the above list and what follows will assist in spurring debate as well as additional sharing of information and any available documentation particularly for the post 1954 years.

During July of 2004 all number sequences from 1955 through 1969 were posted as estimates open to re-interpretation. We pushed, we pulled and we adjusted the numbers, revising them with minor tweaks throughout the following year. Now, during the nearly 10 years that have passed these numbers have stood the test of time and we feel they are accurate enough to continue their use for the years to come.

Anyone with recollections, receipts, invoices or any other information to contribute is encouraged to do so. Unfinished plates and the numbers on them are also interesting and they play a role in this fascinating subject as well. Your comments, questions and theories are always welcome at ******@roadrunner.com


____________________________________________________________________________________________________________________




The Key to this is that Hamilton stopped keeping records in 1955, so we can not prove anything after that, however, with common sense and history we can put together a reasonable date/production chart.


__________________________________
 
Last edited:

Nathan Moore

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This is a chart from the IHC web site and may be questionable, but it is what it is, and better than we have in the Price Guide or the Pocketwatchdatabase.
For the benefit of future visitors to this thread... Despite Jim's assumptions, the estimated dates returned by the Pocket Watch Database for these runs are in close alignment with this proposed chart, as supported by piedmontg indicating that C510643 correlates to 1967.

As always, these are estimated dates and are subject to further refinement in the future. Due to the lack of factory records, these estimations should continue to be cautiously evaluated with wider tolerance than other production that has better supporting documentation.
 

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