| Original Message |
AAKVIPER (Login aakviper)
VRF Member
Posted Mar 4, 2008 10:13 AM
meet the two register Monte Carlo 234 Valjoux and the Daytona powered 727 Valjoux. The MC was sans Micro Stella balance and a thrid register. But the 234 and 727 used the same parts for the two movements. Such as column wheels, many set springs, main train wheels, heart cam clutches, and etc.
One theory of why the MC become so popular to many chronograph collectors (especially the plastic Daytona Boys) was the caliber being from the same Valjoux family. Both the plastic crystal Daytona and two register MC calibers were reworked extensively by Rolex master watchmakers to bring them up to Rolex standard and accuracy.
Oddly enough both the plastic SS Daytona and MC were never submitted for chronometer certification. Also the watch cases of the Daytona and MC were produced by Rolex. Notice the same pushers, crown and crown tube.
I know of one watchmaker who fitted a 234 MC caliber with a Daytona 727 Micro Stella balance and bridge with very small modifications, mainly to the jewels and staff size. This modification to the MC was also reversible.
Cheers Arthur
n |
|
|
