The Philippe Dufour Duality…ultimate in discreteness, and totally unassuming in character, but what a gorgeous, and ultra-complicated movement within.
Nothing unusual from the dial side, but connoiseurs will know from the off-centered subseconds hand at 8 o’clock…an unusual arrangement, promises something interesting.
The movement…viola! as this is a watch which is worn and used by a collector friend, I left the watch condition as is. It may seem alarming that a regularly used watch seems dusty and dirty, but this is absolutely normal. A little cleaning with some compressed air, and a wipe with a microfibre cloth will eliminate these traces of use except for the hairline scratches (which can be cloned out during post production), but I feel this is unnecessary, as I wanted to show the character of a well loved, and well used watch.
Closeup showing the dual escapement, with the differential mechanism hidden under the plate.
Focussing on one of the escapements. Note also the 2 sharp horns on the movement plate, typical of Dufour’s work, and beautifully executed. Normally I would have uses a focus stacking technique to shoot such a beautiful movement to provide greater depth of field. But I neglected to ask the owner not to wind his watch, and as a result, the watch was running when I had it for the shoot. As the escapements were in motion, I could not use stacking to increase the depth of field.
Note that this very small depth of field is characteristic of macro photography. This was shot with the Hasselblad HC4/120 Macro, a specialist lens for macro, focussing on its own to provide a 1:1 image on the sensor. However, I elected to increase the magnification to 1.94X by using both my extension tubes – 58mm+28mm for a total of 78mm extension. This reduces the depth of field even more. Coupled with the smaller depth of field of the larger format sensor compared to a standard DSLR, macro photography at this magnification level is extremely challenging and requires precision and great stability in camera and good lighting.
Thanks for the links
here is some resource…old ones…written by me:
This is such a beautiful watch. Dufour is truly a master of finishing. I have never fully understood the concept of two balances. Is there a link to a technical description of how this watch works?