Vintage Gruen: The caliber database

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Topic	Replies	Views	Last message
The Caliber ... [I guess I get to name it, but I'm just speechless right now] 17''' experimental PW caliber By: thesnark17 on Sun, 10 January 2021	14	1946	Tue, 21 November 2023 01:57 By: thesnark17
The caliber 885 Font caliber By: JackW on Sun, 11 February 2018	2	646	Sun, 19 November 2023 20:23 By: Jenneke
Columbus watch co By: Jenneke on Tue, 18 April 2023	0	503	Tue, 18 April 2023 19:44 By: Jenneke
Caliber 515SS By: Case on Thu, 16 September 2021	14	3367	Sun, 18 December 2022 20:16 By: Ephemerald
Caliber 45 (17J) - Madretsch Precision - 13’” Hunter Configuration By: Case on Tue, 14 July 2020	22	3710	Sun, 27 November 2022 20:18 By: Ephemerald
Caliber 200 & 201 Round, 8.75L, 15J & 16J Factory D & S By: Case on Wed, 20 January 2021	2	1011	Sun, 02 October 2022 18:12 By: Gary
Semithin 754/756/758 Pocket watch movement By: Jenneke on Fri, 24 September 2021	6	1786	Fri, 23 September 2022 22:12 By: Jenneke
The Caliber UltraThin Early variant, SN 41-42,5xx By: thesnark17 on Mon, 25 April 2022	4	1482	Sun, 01 May 2022 00:07 By: JackW
Caliber 849 - 6.5L, 16J - Factory L 6.5'" 16J By: Case on Thu, 05 December 2019	18	3330	Fri, 29 April 2022 04:16 By: Case
The Caliber 250 Dietrich Gruen Variant without wind indicator By: thesnark17 on Mon, 25 April 2022	4	1303	Tue, 26 April 2022 00:13 By: thesnark17
The caliber 839 Extra precision By: Jenneke on Sun, 09 February 2014	22	3935	Mon, 14 February 2022 21:38 By: Jenneke
Caliber 3251 21 jewel variant of the 325 By: JackW on Sun, 23 January 2022	0	603	Sun, 23 January 2022 03:57 By: JackW
The caliber 98 By: Thojil on Thu, 18 July 2013	17	4385	Thu, 30 September 2021 21:20 By: afire
Precision Caliber 90 / 91 / 92 / 93 (Gruen Watch Co.) 11'", 15 (90/91) or 17 (92/93) jewel, Manual wind By: Case on Mon, 07 October 2019	1	760	Fri, 24 September 2021 17:29 By: Case
Caliber 89 (Extra Precision) – 8.75'" 18J, All Adjustments By: thesnark17 on Thu, 18 June 2020	32	5209	Tue, 14 September 2021 13:21 By: Case
Cal 103 By: Barney Green on Fri, 18 October 2019	20	4141	Tue, 07 September 2021 22:39 By: Jenneke
Caliber 615 7.75L, Round, Extra Precision, 16J By: Case on Fri, 15 January 2021	10	2291	Tue, 07 September 2021 08:37 By: Jenneke
The Cal 870/871 the 13L Rebberg By: JackW on Sun, 11 February 2018	8	1840	Thu, 26 August 2021 00:49 By: JackW
Caliber 641 (640) - Factory R Gruen Guild 10.5 ligne, 15 jewels By: Case on Sat, 01 February 2020	14	2655	Fri, 11 June 2021 16:15 By: Case
Cal 840 (841) - 5.5’” 18J Extra Precision Favre By: Case on Mon, 31 August 2020	18	3265	Wed, 14 April 2021 18:39 By: Barney Green
18J Extra Precision Oval (Unknown) measures 18.6mm x 12.65mm or roughly 8.25L x 5.5L By: C. Hurt on Mon, 06 July 2020	13	2424	Mon, 05 April 2021 16:19 By: Case
Calibre 1617 17 jewel variant of cal 161 By: Ephemerald on Tue, 09 February 2021	3	1099	Thu, 11 February 2021 07:37 By: Barney Green
Unknown 18J 8L Caliber (Possibly 857 Extra Precision) By: Case on Sat, 28 November 2020	32	4712	Thu, 11 February 2021 02:34 By: Case
Calibre 705 and 704 Gruen Guild Movements By: Ephemerald on Sat, 19 October 2019	11	2411	Sun, 17 January 2021 20:27 By: Ephemerald
The Caliber 833 6''' oval women's movement By: thesnark17 on Sun, 10 January 2021	1	704	Mon, 11 January 2021 04:27 By: Case
Calibers 881 (7J) & 8357B (17J) - Guild 6.75L Rounded Cartouche (sisters to 15J 835B) Aegler - Factory A By: Case on Wed, 01 July 2020	3	1117	Mon, 23 November 2020 02:21 By: Case
Gruen Guild Calibre 124 WSC-GRUEN By: Ephemerald on Thu, 18 June 2020	3	995	Sun, 06 September 2020 06:58 By: Ephemerald
Cal 328 - 4.5L 17J Baguette (327=15J, 329=7J) Aegler-Rolex SA By: Case on Sat, 05 September 2020	0	543	Sat, 05 September 2020 19:01 By: Case
Cal 850/852/854 (15/17/19J) - 17’” (10S) OF Guild Factory V - Marc Favre ebauche / Lavina finished By: Case on Fri, 28 August 2020	4	1084	Fri, 28 August 2020 20:48 By: Ephemerald
Cal 146/147/148/149 (not 142/143) - 9 3/4’” - 15J/17J Gruen W. Co - Factory T By: Case on Thu, 27 August 2020	1	611	Thu, 27 August 2020 03:33 By: Case
The caliber 35 By: thesnark17 on Mon, 17 August 2020	3	942	Tue, 18 August 2020 03:33 By: Case
Possible Caliber 60 (21J sister to Cal 35) - Madretsch - 17’” Open Face By: Case on Sun, 09 August 2020	18	2821	Thu, 13 August 2020 03:03 By: Case
Caliber 861 -- Factory L -- and a magic show 6.5'" 16J By: Case on Sat, 14 December 2019	4	1124	Sun, 02 August 2020 20:14 By: Case
Caliber 812 - 10’” (also shown as 9 3/4’”) Aegler Rebberg Lepine (OF) Aegler (Gruen Factory A) By: Case on Tue, 16 June 2020	8	1786	Sun, 02 August 2020 19:43 By: Case
Caliber 151 - (Extra) Precision - 5 1/2 '" Favre By: Case on Mon, 15 June 2020	10	2408	Mon, 27 July 2020 14:23 By: Jenneke
Caliber 96 (United Watch Co + Gruen Guarantee) Marc Favre, 10L, OF, 15J By: Case on Tue, 03 December 2019	16	2377	Fri, 17 July 2020 02:30 By: Case
The caliber 120 Guild movement By: mikey on Thu, 20 June 2013	6	1798	Wed, 15 July 2020 21:47 By: Ephemerald
Caliber 719 (15J) - 6.5L x 11L Oval (ETA 425) Possibly Alpina By: Case on Thu, 02 July 2020	6	1076	Fri, 03 July 2020 17:23 By: Barney Green
Caliber 879 — Guild A Aegler 17J 4.5L baguette (Rolex 170) By: Case on Sat, 27 June 2020	6	1155	Wed, 01 July 2020 20:49 By: Case
Caliber 847 “Extra Precision” - 4.5L Aegler By: Case on Wed, 01 July 2020	0	497	Wed, 01 July 2020 06:30 By: Case