




Patek Philippe Ellipse Steel Ref. 3991, Full Set, ca. 1998
Price upon request
Identity
Patek Philippe Ellipse Ref. 3991, ca. 1998. Quartz movement, Patek in-house calibre E23C. Steel case, 29 × 34 mm, Clous de Paris bezel, signed Calatrava crown. White porcelain dial, black Roman numerals, black baton hands, railway minute track, date aperture at 3 o'clock. Sapphire crystal. Black leather strap signed Patek Philippe and signed Patek Philippe steel pin buckle.
Horological context
The Golden Ellipse was introduced by Patek Philippe in 1968 with the reference 3548. Its oval silhouette follows the golden ratio — 1:1.618 proportions inherited from the Divina Proportione — and inaugurated a new family of cases at Patek, neither round nor square. Ref. 3991, launched in the 1980s, offered a quartz variant with the in-house calibre E23C. A distinctive feature of this reference: the Clous de Paris bezel — emblematic signature of the Calatrava — adorns the Ellipse silhouette here, in an aesthetic crossing between the two flagship lines of the manufacture.
Character
Exceptional configuration: steel is rarely used on the Ellipse lineage, almost entirely produced in gold at Patek Philippe. The E23C is an in-house quartz calibre developed by Patek, finished to the same standards as the manufacture's mechanical movements. Porcelain dial with classical Roman numerals, Clous de Paris bezel and original signed leather strap.
Watch serviced. Very good condition. Delivered with its original Patek Philippe box and warranty certificate, and the Contre-Temps 24-month warranty certificate.
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The model in detail
Brand: Patek Philippe
Model: Ellipse "Clous de Paris" in steel
Year of production: 1998
Era of production: Post-2000
Case diameter: 34 x 29 mm
Caliber: E23C
Reference number: 3991
Complications: Date
Movement: Quartz
Crystal: Sapphire
Case material: Steel
Bezel material: "Clous de Paris" finish in steel
Strap/band: Leather
Buckle: Steel pin buckle - Patek Philippe
Water resistance: Water resistance
Other informations:
Dial: White porcelain - Patek Philippe
Dial numerals: Roman numerals
Style: Mixed Watch
Special mentions: Rare steel ellipse with Clous de Paris bezel
Paperwork: Original papers + Contre-Temps guarantee certificate
Includes: Original box
Guarantee: Contre-Temps 2 Years
Condition: Exceptional

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