.
400 units were produced in
each of the
three golds (white, yellow, rose) and only
100 units in
platinum.

The
case measures
40 x
10.5 x
46.6 mm and features
angular stepped lugs which are
inserted into the
mid-case, but also
override the
bezel.

The watch features a
solid celebration case back.

Hidden behind the case back is
caliber CH 28-520, an automatic movement with a column wheel and a vertical clutch allowing to keep the chrono hand running constantly.


The watch was delivered in a special
anniversary box and with a
commemorative medal representing
Charles,
Henri,
Philippe and
Thierry Stern.

The watch also features a
commemorative folding buckle.
credit: personal photos (1-5), Antiquorum (6) & @kimai.frodos (7-9)
B/ PLATINUM REF. 5975P-001
With only 100 examples made, it is the rarest of the set.

The
original black strap didn't feature
red stitching: this strap was added by the owner.

The
three-part construction of the
case is clearly visible here.

The
commemorative folding buckle.
credit: @alexanderfriedman (1) @crazywatches_th & @thegallery_nutnaliga
C/ YELLOW GOLD REF. 5975J-001
I think yellow gold would be my personal favorite variant (but I've only seen the white gold so far).
credit: Analog Shift & Phillips (two last photos)
D/ ROSE GOLD REF. 5975R-001

Below are the photos of the
delivery experience of a private collector, as provided by
Watch Collecting Lifestyle.
credit: Antiquorum (1), Regal Time (2-6) & Watch Collecting Lifestyle
BONUS: VIDEO REVIEWS BY TIM MOSSO
Review of the 5975G-001
Review of the 5975P-001
Review of the 5975J-001
Review of the 5975R-001