Pierre DeRoche “SplitRock”
Automatic Chronograph Concentrique. Special Red Racing Edition.
in Vallee de Joux. Extremely Limited Production. Super
high-end small independent manufacture.
Stainless steel, with deployant buckle.
100% BRAND NEW,
Unworn condition! Complete with
box and paers as shown in photos. Comes with original Pierre
deRoche deployant buckle.
31.6mm, 13.7mm thick.
Dial: The silver dial Splitrock with red hands. silver
clos de Paris guilloche dial. Concentric chronograph at 6’O
clock. Small second at 12’O clock. Date at 3’O clock.
Pierre DeRoche red alligator strap with
The Splitrock features a proprietary chronograph
movement with micro-rotor, and the movement is extremely
beautifully finished. This is the only concentric chronograph
on the market, and represents a very difficult technical
Stunningly decorated and finished
movement, featured through
the sapphire crystal display back!
Pierre DeRoche uses an exclusive for
Pierre DeRoche movement in
the SplitRock watch, which is the Swiss made Dubois Depraz PDP
4001-1 automatic. It uses a micro-rotor so that you can
more of the decorated movement. Lots of large blued steel screws
and cotes de Geneve polish, as well as some perlage on the
movement. “Vallee de Joux” – the origin of the
is engraved on the movement. The appearance of the movement is
rather phenomenal, making the watch a pleasure to look at both
front and back.
chronograph function features three concentric dials inside of
another. The dial has three ring and three hands. The larger,
red hand is for the seconds, and then there is a smaller minute
hand for the chronograph minutes, and under that is an even
smaller hand for the chronograph hours (you can’t see that hand
until the minute hand moves). This clever system allows Pierre
DeRoche to insert a fully functional 12 hour chronograph into
dial. There is also a subsidiary seconds dial for the time
overlaying the time dial. I also like how the date window was
elegantly placed in as part of the watch dial, with a little
bulge. Overall, the SplitRock dial is quite unique in design and
quite three dimensional, but takes into consideration rules of
symmetry and traditional design ensuring it looks attractive.
There are a lot of
art deco elements to the design that is also very architectural.
The design is contemporary yet mature.