ROLEX ROLEX REF 1831/1850
PLATINUM DAY DATE NO. 001/8
Rolex, "Oyster Perpetual, Day-Date, Superlative
Chronometer Officially Certified, No. 001, case No.
5055759, Rolex Ref 1831/1850. Made in 1977.
Very fine and very rare, tonneau-shaped, center seconds,
self - winding, water-resistant, platinum and diamonds
wristwatch, day, date and a platinum Rolex bracelet with
platinum double deployant clasp.
CThree-body, solid, polished and brushed, screwed-
down case back and crown, bezel set with diamonds,
plastic crystal with Cyclops lens.
DBlue with 8 round and 2 baguette diamond indexes,
outer minutes / seconds divisions, apertures for the day
of the week and the date. White gold baton hands.
MCal. 1566, rhodium-plated, 26 jewels, straight-line
lever escapement, monometallic balance adjusted to
temperatures and 5 positions, shock absorber,
self-compensating free-sprung Breguet balance spring,
Microstella regulating screws, hack mechanism.
NotesDial, case, and movement signed.
DIAM. 37 mm.
THICKNESS 13 mm. Approx. overall length: 180 mm.
Known to be produced
in only 8 pieces, the
elusive reference 1831
is the ultimate day-date
produced in platinum on
platinum bracelet in the
massive heavy Oysterquartz
to our research it seems
that these watches were
ordered exclusively by the
Shah of Iran to be gifted
Unseen and unknown to the market and being the first
delivered of the series (No. 01), this is the fourth known
of the eight to surface to the market (No. 02 serial
5086929 and No. 04 serial 5086931) and has a beautiful
dark blue dial with diamond indexes (out of the
four known, two had stella dials and two had dials
with diamond markers). Worn only on a few very
rare occasions and kept in excellent condition,
it has been preserved in almost as new condition
with all hallmarks and engravings crisp
and deep. Weighing in at a massive perfect
300 gramms, there is no doubt that this
watch will hold a coveted place within
any serious Rolex collector's vault. For
a similar example see Antiquorum
Geneva, 17th March, 2013, lot 530.