Introduction
Few watches embody Patek Philippe's approach to classical dress watchmaking quite like the Calatrava ref. 3919. Introduced in 1985, the reference became one of the manufacture's most recognisable designs, combining the simplicity of a traditional time-only wristwatch with the distinctive Clous de Paris, or hobnail, bezel. This finely executed geometric decoration, formed from a repeating arrangement of miniature pyramids, provided an elegant contrast to the otherwise restrained case and dial. Powered by the manually wound calibre 215, the ref. 3919 remained a cornerstone of Patek Philippe's collection for more than two decades, offering a particularly refined interpretation of the Calatrava's original design philosophy. Although produced in several precious metals, the reference was also the subject of occasional special editions, allowing the manufacture to explore subtle variations of an established design without compromising its essential character.
Released in 1998, the ref. 3919SG was a particularly interesting interpretation of the Calatrava, produced in a limited edition of just 150 pieces for the Japanese market. Crafted from 18K white gold, the watch retains the familiar 33.45mm proportions and distinctive hobnail bezel of the standard model, but introduces two important differences. The first is its white porcelain dial, featuring applied Roman numerals rather than the printed numerals found on regular-production examples. This creates a more pronounced sense of depth, with the raised hour markers providing an elegant contrast against the smooth white surface. The second is the sapphire crystal display back, allowing the wearer to admire the manually wound calibre 215 within. Indeed, the additional 'S' in the reference designation denotes the sapphire crystal, distinguishing this limited edition from the standard solid-backed ref. 3919. Originally sold in 1999, this example is accompanied by its Certificate of Origin, box and leather wallet containing the original literature, making it an appealing example of one of the more unusual variations of Patek Philippe's celebrated hobnail Calatrava.
Loupe This Scorecard
Grade
M 9.5
Status
Vetted & Approved
Included
Box and papers
Est. value range
$15,000 – $25,000
The Details
Brand
Patek Philippe
Dimensions
33.5mm
Model
Calatrava
Movement
Manual-winding Patek Philippe cal. 215
Reference
3919SG
Bracelet
Leather strap
Year
1998
Condition
Like new
Material
18K White Gold
Included
Box and papers
Dial Color
White

THE DIAL
The white porcelain dial features applied Roman numeral hour markers, distinguishing this limited edition from the printed numerals found on standard-production ref. 3919 watches. The raised markers introduce additional depth to the otherwise restrained display, whilst the traditional two-hand arrangement and small seconds register at six o'clock preserve the classical symmetry associated with the Calatrava collection.

THE CONSTRUCTION
The 33.45mm case is crafted from 18K white gold and retains the classical round profile associated with the ref. 3919. Its polished surfaces contrast with the finely textured hobnail bezel, whilst the restrained proportions reflect the traditional dimensions of a mid-century dress watch. The sapphire crystal display back is a defining feature of this limited edition, distinguishing it from regular-production examples fitted with solid case backs.

TIMING MACHINE READOUT
This reading was taken (crown down) with a ONEOF Accuracy Boutique Edition timing machine at time of cataloging. It is provided as a courtesy only, and shall not be construed as a warranty or guarantee of any kind. Please refer to our terms and conditions of sale for more information.
Condition
Watch is in overall like-new condition. The 18K white gold case shows only light signs of wear or handling. Comes with inner and outer boxes, Certificate of Origin, three booklets, paperwork, document holder, and hangtags.
Please note: The watch ticks at time of cataloging, but timekeeping is poor and a service is recommended.
Please Note: Due to CITES considerations, if the watch is to be shipped outside of the USA, the exotic skin strap will have to be removed.
Our Perspective
The ref. 3919SG offers a fascinating variation of one of Patek Philippe's most recognisable Calatrava designs. With its porcelain dial, applied Roman numerals and sapphire display back, this 150-piece Japanese limited edition introduces distinctive details to an established classic without compromising its understated elegance.


























