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| Gevril GV2 price increase...? | Rate Topic |
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| Posted: Wed Jul 15th, 2009 04:36 pm |
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25th Post |
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ral 3T WIS
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I read somewhere that Gevril provided "ETA 2824-2 movements with Dubois Dépraz layers". What is that exactly? Marketing hype?
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| Posted: Wed Jul 15th, 2009 05:35 pm |
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26th Post |
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cfoster 3T WIS
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ral wrote: I read somewhere that Gevril provided "ETA 2824-2 movements with Dubois Dépraz layers". What is that exactly? Marketing hype? Going back to the "First Generation" right through the present, Gevril has used the Dubois Depraz modified movements for most of their chronographs. I have several of them. The 2824-2 is an automatic 25 jewel movement which is modified by adding the Dubois Depraz 26 jewel chronograph module for a movement total of 51 jewels. No hype, in my experience, just a great movement. Clyde
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| Posted: Wed Jul 15th, 2009 06:45 pm |
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27th Post |
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KenC Admin 
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cfoster wrote: ral wrote:I read somewhere that Gevril provided "ETA 2824-2 movements with Dubois Dépraz layers". What is that exactly? Marketing hype? The DD2020 is, indeed, a magnificent movement...I have 2 watches that use it, a Steinhart MACH1 and a VIXA Type-20...  
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| Posted: Wed Jul 15th, 2009 08:22 pm |
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28th Post |
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ral 3T WIS
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So the modified movements are only chronographs?
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| Posted: Thu Jul 16th, 2009 02:07 am |
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29th Post |
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Simon_Leung 3T WIS 
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Historically Speaking: The Dubois-Depraz chronograph module has been around for 40 years now. It was first introduced at the Basel Fair of March 1969 when Hamilton,Heuer and Breitling started the Calibre 11 project, which brought these three companies together to create the first automatic chronograph wristwatch. Only to be beaten by the Zenith El-Primero, a few months earlier. The Movado-Zenith El-Primero,was the first integrated column wheel automatic chronograph movement. The Early Design: The Dubois-Depraz module is located on top of the Buren micro-rotor automatic movement. The Buren micro-rotor was used in the Universal Geneva Polerouter and Hamilton's Thin-O-Matic watches. Over the course of four decades. The DD module has been used in Tissot,Longines, Omega Speedmaster Reduce,Georg von Burg,Anonimo and other companies. The More Common Design: The Dubois-Depraz chronograph module sits above the ETA 2892-A2 25 jewel movement. The DD module was a cost effective way to produce an automatic chronograph movement. Depending on whose side of the debate one takes, is that many of the DD modules simply gets replace; partially due to complexity of the piggy back design. Last edited on Thu Jul 16th, 2009 02:08 am by Simon_Leung |
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| Posted: Thu Jul 16th, 2009 09:06 am |
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30th Post |
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chris s. 3T WIS 
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Here are my 2 Gevril Chronos with DD 2020  It is also my understanding that if some thing goes wrong with chrono the 2824 will still function as a 3 hand movement unlike the 7750. The module is then replaced. Gevril also modifed the 2893 now found in the Avenue Serenade with 2 timezones and day and night windows . The new ones are quite up there in price, but here's a 1st Gen. example   Last edited on Thu Jul 16th, 2009 09:08 am by chris s. |
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| Posted: Thu Jul 16th, 2009 09:42 am |
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31st Post |
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Simon_Leung 3T WIS
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Yes, Chris that is correct the 2824 will work as normal three hand watch when the Dubois-Depraz module malfunctions. The Valjoux 7750 is an integrated automatic chronograph movement. This movement is more difficult to repair due to its the small clutch spring. The part number 8320 resembles a something between a staple and the teeth of a beetle. The sole purpose of this spring is to move the clutch which operates the oscilliating pinion on command. Last edited on Thu Jul 16th, 2009 09:45 am by Simon_Leung |
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