Gruen Caliber Date Table - Christmas 2017 Edition

Vintage Gruen Watch Discussion Forum
Message
Author
User avatar
MikeTheWatchGuy
Posts: 349
Joined: Mon Mar 05, 2012 11:55 am
Contact:

Gruen Caliber Date Table - Christmas 2017 Edition

#1 Post by MikeTheWatchGuy » Wed Dec 20, 2017 9:27 am

Ho ho ho .....
A new
Gruen Movement Caliber-Date Table
is here!

It's been a very long time since a 'Caliber-Date Table' for Gruen was published. The last edition I published was in the Repairer's Reference book in 2011.

Wait no longer.... a new table is here!

A couple of footnotes.
It only includes movements found in Gruen publications up to and including the 457 Material Catalog. Movements like the 510 do not appear in this table. Sorry, but that't just how things have progressed so far. I've been scraping and building up from scratch.

Two new columns appear on this table for the first time... the number of jewels and the quality level (as stated in the catalogs or on the movements). This should help you better determine if you've got the right movement.d

You'll find this document posted on the GruenWristwatches homepage as well as in the Gruen Movement Catalog. I'll embed it into a webpage shortly.
Gruen Movement Catalog - Caliber Date Table V1.1 .pdf
Gruen Caliber-Date Table 2017 Version 1.1
(514.13 KiB) Downloaded 76 times
Footnote 2

A HUGE thanks is owed to Bazzab, who for over a decade has kept the 'official list' as far as I was concerned and has improved the accuracy of the dates on an ongoing basis. This simply wouldn't exist without his help.
Image

Tags:

User avatar
MikeTheWatchGuy
Posts: 349
Joined: Mon Mar 05, 2012 11:55 am
Contact:

Re: Gruen Caliber Date Table - Jan 2018 Edition

#2 Post by MikeTheWatchGuy » Thu Jan 04, 2018 2:46 pm

It took a bit longer to get this clear-text version produced in a way that looks nice on the web.

Below is the table in plain ASCII format. You'll also find it on a new page at :
http://www.gruenwristwatches.com/gruen- ... -table.php

A shortened tutorial on Gruen Dates is in the works to accompany this so stay tuned. None of it will have any surprises to this crowd however.

Code: Select all

Caliber   Jewels   "Quality" Year of Intro
21        21        Precision 1914
35        17        Precision 1910
45        17                  1911
47        17                  1915
50        21        Extra     1911
87        18        Extra     1920
89        18        Extra     1915
93        17        Precision 1917
94        15                  1914
96        15                  1917
98        15        Precision 1915
99        15                  1915
100       15        Precision 1915
101       15        Precision 1915
103       15                  1917
105       17        Extra     1925
106       15        Precision 1928
107       17        Precision 1927
115       15        Precision 1925
117       17        Precision 1925
119       17        Precision 1928
120       15        Guild     1916
121       15        Guild     1916
123       17        Precision 1930
124       15        Guild     1915
125       15        Guild     1915
126       15        Guild     1916
127       15        Guild     1916
130       15        Guild     1919
131       15        Guild     1919
133       17        Guild     1919
139       15                  1914
140       15                  1919
142       15                  1919
149       15                  1920
151       17        Precision 1921
153       15        Guild     1924
155       15        Guild     1924
157       15        Guild     1925
159       15                  1931
161       15        Guild     1930
163       15        Guild     1924
165       15        Guild     1929
167       7         Guild     1936
168       17                  1936
169       11                  1932
176       17        Guild     1920
177       17        Guild     1920
179       15        Guild     1925
181       15        Guild     1932
183       7         Guild     1932
200       15                  1919
210       17                  1939
211       15                  1939
212       7                   1940
215       17                  1948
216       15                  1950
253       15        Guild     1926
266       15        Guild     1926
270       17                  1936
271       15                  1936
275       17        Precision 1947
280       17        Precision 1936
285       17        Precision 1948
290       17        Precision 1940
291       15                  1941
295       17        Precision 1946
300       17        Precision 1936
306       17                  1934
307       17        Precision 1932
311       17        Precision 1935
313       15        Guild     1928
315       15        Guild     1929
325       17        Guild     1930
327       15                  1932
328       17                  1934
329       7                   1933
330       17        Precision 1937
335       17        Precision 1948
341       7                   1932
342       15                  1932
343       17                  1932
344       7                   1934
345       15                  1935
347       17                  1935
350       17        Precision 1938
355       17        Precision 1935
370       17        Precision 1948
380       17        Precision 1939
381       15        Precision 1939
385       17        Precision 1946
386       15        Precision 1946
390       17        Precision 1934
400       17        Precision 1935
401       15                  1937
405       17        Precision 1938
406       15                  1938
410       17        Precision 1939
411       15                  1939
415       17                  1950
416       15                  1950
420       17        Precision 1942
421       15                  1942
422       17                  1948
423       15                  1950
425       17        Precision 1945
426       15                  1945
430       17        Precision 1940
431       15                  1940
435       17                  1940
440       17        Precision 1940
450       17        Precision 1946
455       15                  1935
457       17                  1939
459       17                  1939
460       17        Precision 1947
465       15                  1935
467       7                   1935
469       17                  1935
470       17        Precision 1948
475       17        Precision 1951
480       17                  1951
485       15                  1935
487       7                   1935
500       17                  1936
501       15                  1936
502       7                   1936
520       17                  1936
530       17                  1936
531       15                  1936
540       17                  1936
541       15                  1936
580       17                  1936
581       15                  1936
582       7                   1936
610       17        Guild     1916
612       17                  1916
613       17                  1916
615       16                  1910
616       17                  1910
626       16                  1910
647       17        Guild     1910
650       17        Guild     1918
673       17                  1939
675       7                   1934
676       7                   1934
678       17                  1934
679       7                   1934
680       7                   1934
681       17                  1934
682       17                  1934
685       7                   1935
686       15                  1939
695       15        Guild     1939
696       17        Guild     1939
697       7         Guild     1937
700       7         Guild     1935
701       15        Guild     1935
702       17        Guild     1935
703       7         Guild     1933
704       15                  1937
705       15        Guild     1925
707       15        Guild     1925
713       7                   1924
716       15        Guild     1924
717       17                  1926
720       21        Guild     1910
740       17        Guild     1910
754       15        Guild     1921
756       17        Guild     1920
758       15        Guild     1923
766       15                  1910
771       15                  1910
775       15                  1910
796       17        Guild     1918
803       15                  1926
806       7         Guild     1915
807       15                  1915
808       7                   1915
809       7                   1915
812       15        Guild     1915
813       15        Guild     1915
816       15                  1920
818       15        Guild     1921
819       15        Guild     1921
820       15                  1920
823       15        Guild     1922
825       15        Guild     1922
826       15        Guild     1922
827       15        Guild     1922
833       15        Guild     1922
835       15        Guild     1924
839       18        Extra     1921
840       18        Extra     1918
841       18        Extra     1918
843       17                  1919
845       18                  0
847       18        Extra     Pre 1920
849       16                  1919
850       17        Guild     1920
857       18        Extra     1920
859       16                  1920
870       15        Guild     1920
871       15        Guild     1920
877       15        Guild     1928
879       17                  1931
881       7                   
885       15        Guild     1925
905       15                  
907       7                   1935
915       15                  1936
916       17                  1936
917       7                   1936
975       15                  1939
976       17                  1939
997       17                  1915
1067      17        Precision 1928
1077      17        Precision 1927
1157      17                  1925
1396      15        Guild     1914
1397      17        Guild     1914
1597      17                  1931
1617      17        Guild     1930
3137      17        Guild     1928
3157      17        Guild     1930
3251      21        Guild     1931
3351      21        Precision 1948
7057      17                  1925
8357      17        Guild     1930
117N      17        Precision 1925
210SS     17                  1939
211SS     15                  1939
215SS     17                  1948
216SS     15                  1950
270SS     17                  1937
271SS     15                  1937
355C      17        Precision 1935
405SS     17        Precision 1939
406SS     15                  1939
410SS     17        Precision 1941
411SS     15                  1941
415R      17                  1950
415SS     17                  1950
420SS     17        Precision 1942
421SS     15                  1942
422R      17                  1948
425SS     17                  1946
460SS     17        Precision 1947
470SS     17        Precision 1948
480-3SS   23                  1951
704SS     15                  1937
8357B     17        Guild     
8357SS    17        Guild     
835B      15        Guild
835BSS    15        Guild     
835SS     15        Guild     1925
881SS     7                   
Dietrich Gruen 23   Extra     1920
Ultra Ultrathin 19  Extra     1920
Ultrathin 19        Extra     1920
Ultra-Verithin 17   Precision 1920
UV        17        Precision 1920
V1        21        Extra     
V1 1/2    21        
V2        19        Extra     
V2 1/2    19        
V3        17        Extra     
V4        17        Precision
V7        17        Precision
Verithin  15        Precision 

(c) Copyright 2018 GruenWristwatches.com, M.Barnett & B. Cooper
Image

User avatar
Barney Green
Posts: 228
Joined: Mon Nov 23, 2015 2:30 pm
Location: Germany

Re: Gruen Caliber Date Table - Christmas 2017 Edition

#3 Post by Barney Green » Thu Jan 04, 2018 11:08 pm

Mike,

thank you very much for the great efforts you share with the community here.
Would you be willing to add other calibers like the post 1958 ones which Gruen made or at least had a Gruen caliber number?

Best regards
Barney

Wynot
Posts: 11
Joined: Thu Dec 08, 2016 9:04 pm

Re: Gruen Caliber Date Table - Christmas 2017 Edition

#4 Post by Wynot » Sat Jan 13, 2018 7:38 pm

Thanks for the hard work on this caliber date table! It is appreciated. I picked up a Gruen ladies' wrist watch some time last year. Your date table identifies it as being made in 1922 (Caliber 823). From what I've read, this caliber shares a lot of its DNA with the Rolex Caliber 500. Do you know of any resources that will tell me how many were produced? Are they rare? I couldn't find this caliber on the Ranfft website. Any resources for determining style? There is no style number inside the case back. It's in a Wadsworth 14KWG case and has an engraved dial. Thanks.

User avatar
MikeTheWatchGuy
Posts: 349
Joined: Mon Mar 05, 2012 11:55 am
Contact:

Re: Gruen Caliber Date Table - Christmas 2017 Edition

#5 Post by MikeTheWatchGuy » Sat Jan 13, 2018 7:52 pm

Thank you for showing your appreciate :-) Every little bit helps.
Of course records are non-existent for much of this. The problem with the 823 in particular is the lack of a Serial Number on the movement. None of the photos of 823's that I have show a serial number and the Material Catalog photos of the movement are also missing serial numbers. The 50 new-old-stock 823 movements I own don't have numbers stamped on them as well :lol: yea, right...

Rolex is much more likely to have your answer. Give 'em a call! Or, ask the NAWCC Library Research folks if you're a member.
Image

Wynot
Posts: 11
Joined: Thu Dec 08, 2016 9:04 pm

Re: Gruen Caliber Date Table - Christmas 2017 Edition

#6 Post by Wynot » Sat Jan 13, 2018 9:30 pm

Well, if you've got 50 NOS 823 movements lying around, my guess is that mine isn't as rare as I'd hoped. Thanks for your help. I'll give Rolex a call.

User avatar
MikeTheWatchGuy
Posts: 349
Joined: Mon Mar 05, 2012 11:55 am
Contact:

Re: Gruen Caliber Date Table - Christmas 2017 Edition

#7 Post by MikeTheWatchGuy » Sun Jan 14, 2018 6:57 am

oh no! It was a joke! :lol: wasn't a good enough tip.

I don't own any. Only NOS I've ever owned were 157's, very common.

You do have a valuable movement.

Do call Rolex!
Image

User avatar
Barney Green
Posts: 228
Joined: Mon Nov 23, 2015 2:30 pm
Location: Germany

Re: Gruen Caliber Date Table - Christmas 2017 Edition

#8 Post by Barney Green » Sun Jan 14, 2018 7:37 am

I currently have 1365 Gruens, none is an 823. :-)

User avatar
afire
Posts: 1683
Joined: Thu Mar 22, 2012 7:08 am

Re: Gruen Caliber Date Table - Christmas 2017 Edition

#9 Post by afire » Thu Jan 18, 2018 3:24 pm

I had a men's model with an 823 that needed major repair, and it was not easy finding a good donor movement.
Real men wear small watches.

Wynot
Posts: 11
Joined: Thu Dec 08, 2016 9:04 pm

Re: Gruen Caliber Date Table - Christmas 2017 Edition

#10 Post by Wynot » Sun Jan 28, 2018 10:29 pm

Well, I should check back for new replies more often! I was surprised to see 3 new responses. Mike, glad to hear it was a joke about the NOS movements (although it would be pretty cool if you did have 50). I got sidetracked but, I'll be contacting Rolex tomorrow. I had originally written the watch is cased in a Wadsworth 14KWG case. I wanted to correct that as the case, marked both Gruen and Wadsworth, reads 14 K. GOLD REINFORCED WITH METAL. I thought that might mean a wire frame inside the gold. I saw a video done by a scrapper warning others to beware. He said the metal reinforcement is basically the entire case with maybe 10 microns of gold plate. Has anyone else run into this before? I wish I could post a picture or two but haven't figured out how without an image url. It's missing its crystal but runs like a champ. Thanks!

Post Reply

Who is online

Users browsing this forum: No registered users and 1 guest