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| Joined: | Wed Mar 19th, 2008 |
| Location: | Richmond, Canada |
| Posts: | 1209 |
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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