Vintage Gruen: The caliber database » Caliber 89 (Extra Precision)

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Re: Caliber 89 (Extra Precision) – 8.75'" 18J, All Adjustments [message #14524 is a reply to message #14523]

Tue, 16 February 2021 20:10

Barney Green
Messages: 1755
Registered: February 2014
Location: Wolfsburg, Germany

Gruen Authority

Jenneke,

LeCoultre may most likely have just provided the ebauche as caliber 6, not a finished movement. This was the common procedure, that someone provided raw movements, the ebauches, and another company like for example Cattin made complete movements from these ebauches. Other third partries were involved got galvanisation for example so that very often the movements went through several factories before a watch was built from them.
This has been the Swiss way at that time and this is something Gruen wanted to change with the precision factory.
It now makes it often very difficult to find out who did which steps. Sometimes it is a little easier when the factory was acting a little more modern and provided finished movements from ready made ebauches.

Barney

Gruen, Gruen, Gruen ist alles was ich habe... Gruen, Gruen, Gruen is all I have...(German folklore song)

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[Message index]

		Caliber 89 (Extra Precision) – 8.75'" 18J, All Adjustments By: thesnark17 on Thu, 18 June 2020 01:39
		Re: Caliber 151 - (Extra) Precision - 5 1/2 '" By: Case on Thu, 18 June 2020 02:10
		Re: Caliber 151 - (Extra) Precision - 5 1/2 '" By: thesnark17 on Thu, 18 June 2020 13:01
		Re: Caliber 151 - (Extra) Precision - 5 1/2 '" By: Barney Green on Thu, 18 June 2020 13:23
		Re: Caliber 151 - (Extra) Precision - 5 1/2 '" By: afire on Thu, 18 June 2020 17:22
		Re: Caliber 151 - (Extra) Precision - 5 1/2 '" By: Case on Thu, 18 June 2020 18:18
		Re: Caliber 151 - (Extra) Precision - 5 1/2 '" By: Barney Green on Thu, 18 June 2020 19:19
		Re: Caliber 151 - (Extra) Precision - 5 1/2 '" By: thesnark17 on Thu, 18 June 2020 20:53
		Re: Caliber 151 - (Extra) Precision - 5 1/2 '" By: Ephemerald on Thu, 18 June 2020 21:08
		Re: Caliber 151 - (Extra) Precision - 5 1/2 '" By: afire on Fri, 19 June 2020 16:22
		Re: Caliber 151 - (Extra) Precision - 5 1/2 '" By: Case on Sun, 28 June 2020 18:52
		Re: Caliber 151 - (Extra) Precision - 5 1/2 '" By: afire on Mon, 29 June 2020 16:38
		Re: Caliber 151 - (Extra) Precision - 5 1/2 '" By: Case on Tue, 30 June 2020 13:36
		Re: Caliber 151 - (Extra) Precision - 5 1/2 '" By: Case on Thu, 18 June 2020 20:54
		Re: Caliber 151 - (Extra) Precision - 5 1/2 '" By: C. Hurt on Sat, 04 July 2020 22:05
		Re: Caliber 151 - (Extra) Precision - 5 1/2 '" By: Case on Sun, 05 July 2020 03:14
		Re: Caliber 151 - (Extra) Precision - 5 1/2 '" By: C. Hurt on Sun, 05 July 2020 14:00
		Re: Caliber 151 - (Extra) Precision - 5 1/2 '" By: Barney Green on Sun, 05 July 2020 16:28
		Re: Caliber 151 - (Extra) Precision - 5 1/2 '" By: thesnark17 on Mon, 06 July 2020 00:07
		Re: Caliber 89 (Extra Precision) – 8.75'" 18J, All Adjustments By: Case on Mon, 27 July 2020 14:27
		Re: Caliber 89 (Extra Precision) – 8.75'" 18J, All Adjustments By: Case on Thu, 11 February 2021 03:04
		Re: Caliber 89 (Extra Precision) – 8.75'" 18J, All Adjustments By: Jenneke on Mon, 15 February 2021 22:49
		Re: Caliber 89 (Extra Precision) – 8.75'" 18J, All Adjustments By: afire on Tue, 16 February 2021 18:55
		Re: Caliber 89 (Extra Precision) – 8.75'" 18J, All Adjustments By: Barney Green on Tue, 16 February 2021 20:10
		Re: Caliber 89 (Extra Precision) – 8.75'" 18J, All Adjustments By: afire on Wed, 17 February 2021 18:30
		Re: Caliber 89 (Extra Precision) – 8.75'" 18J, All Adjustments By: Barney Green on Wed, 17 February 2021 20:03
		Re: Caliber 89 (Extra Precision) – 8.75'" 18J, All Adjustments By: Jenneke on Wed, 17 February 2021 21:52
		Re: Caliber 89 (Extra Precision) – 8.75'" 18J, All Adjustments By: afire on Wed, 17 February 2021 22:55
		Re: Caliber 89 (Extra Precision) – 8.75'" 18J, All Adjustments By: Case on Thu, 18 February 2021 03:51
		Re: Caliber 89 (Extra Precision) – 8.75'" 18J, All Adjustments By: thesnark17 on Thu, 18 February 2021 05:05
		Re: Caliber 89 (Extra Precision) – 8.75'" 18J, All Adjustments By: Barney Green on Thu, 18 February 2021 09:10
		Re: Caliber 89 (Extra Precision) – 8.75'" 18J, All Adjustments By: afire on Thu, 18 February 2021 17:03
		Re: Caliber 89 (Extra Precision) – 8.75'" 18J, All Adjustments By: Case on Tue, 14 September 2021 13:21

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