The
10 Days Tourbillon ref.
5101 won the
GPHG '
Aiguille d'or' in
2003, the year of its introduction.
From a design standpoint, it's a wonderful Art Deco timepiece, taking inspiration from three previous models: ref. 514, 524 & 520.
From a technical standpoint,
caliber 28-20/222 , also named
TO 28-20 REC 10J PS IRM includes a
Tourbillon (TO), measures
28 x 20 mm (28-20), is
Rectangular (REC), runs for
10 days (10J - 10 'Jours' in French), has a
small-seconds subdial (PS - 'Petite Seconde'), and features a
power reserve indicator (IRM - 'Indicateur de Réserve de Marche). And it is finished to the best level.
The different variants have been launched as follows:
- 2003: ref. 5101P-001: platinum case & salmon dial
- 2009: ref. 5010R-001: rose gold case & grey dial
- 2011: ref. 5101G-001: white gold case & blue dial + ref. 5101/100 rare handcrafts with engraved case (in rose or white gold, as well as platinum, according to Sjx, but possibly also in yellow gold)
- 2012: ref. 5101J-001: yellow gold case & silver dial
- circa 2013: special request 5101P with platinum case & black dial
Pre-2009 models feature the Geneva Seal, and models built from roughly summer 2009 sport the Patek Philippe Seal.
The Gondolo ref. 5200 arrived in 2013, marking the end of the line for ref. 5101.
Lastly, in his different reviews of the 5101 (on Quill & Pad and on YouTube: cf. below), Tim Mosso mentions that it is the style, the beauty, and the uncompromising standards of this Ten-days Tourbillon which first spurred Rexhep Rexhepi’s resolve, during his five-years apprenticeship at Patek Philippe, to create his own watch...
I wish you all a great weekend !
Best,
Emmanuel
A/ THREE TIERED FLANKS INSPIRATIONAL MODELS FROM THE LATE 1930's
1/ Ref. 514 with caliber 9-90
a/ Model from 1938 in yellow gold with Breguet numerals
b/ Model from 1939 in yellow gold with Roman numerals

credit: onbehalf
2/ Ref. 524 with caliber 9-90: model in stainless steel from 1938 with Arabic numerals

credit: onbehalf
3/ Ref. 520 from 1937

credit: antiquorum
B/ REF. 5101: SEVEN VARIANTS
1/ Ref. 5101P-001 (2003)
credit: @l951.1

credit: @goldentimeco_official

credit: the keystone

credit: wind vintage

credit: déployant
with ref. 5004P - credit: @cagidue
2/ Ref. 5101R-001 (2009)

credit: the keystone


credit: European watch company

credit: @essentialwatches

credit: the watch 101
3/ Ref. 5101G-001 (2011)

credit: the keystone

credit: the 1916 company

credit: @sothebyswatches

credit: @watchprofessor
4/ Ref. 5101J-001 (2012)

credit: pinterest

credit: the 1916 company

credit: @sky_global
5/ Ref. 5101P unique special request platinum model with black dial (circa 2013)

credit: @vinontre
6/ Ref. 5101/100G-001 rare handcrafts in white gold (unique piece)
with ref. 5275P - credit: @patekcollector
7/ Ref. 5101/100R-001 rare handcrafts in rose gold (note that a
yellow gold variant and a
black dial, possibly in platinum,
can be seen here)

credit: Sjx
C/ CALIBER 28-20/222 aka TO 28-20 REC 10J PS IRM (pre-2009 model with Geneva Seal - for a deep dive into the movement, you can read the recent
thread by AndCavanaugh)

credit: Ron DeCorte on
people.timezone
Tim Mosso's Collector's Guide to the 5101