1892 Patek & Cie Celestial Pocket Chronometer

Item No: #PT-1892-09 Rarity: 1 of 1 Rating: Museum Grade (98/100)

$4,850 $5,200

Master Watchmaker Condition Statement:

Original double-sunk grand feu enamel dial free from hairlines. 18k solid gold hunter case retains crisp hand-engraved acanthus leaf guilloché. Fully serviced movement maintaining chronometer precision within ±4 seconds daily.

📜 Includes physical parchment Certificate of Authenticity signed by Master Horologist E. Laurent.

🔒 Third-party Escrow Verification and 30-Day unconditional museum return privilege.

📦 Dispatched in bespoke mahogany keepsake coffer with custom brass plaque.

The Lineage of Ownership

Commissioned in November 1892 in Geneva for the estate of Lord Archibald Sterling of Glenfinnan, this pocket chronometer remained within the family treasury for three generations before appearing in the 1964 Sotheby's London antiquities sale.

Its exceptional state of preservation is credited to its continuous storage within an airtight velvet-lined rosewood presentation vitrine. The astrological complication tracks lunar phases with an accuracy deviation of only one full day per 122 years.

Technical Breakdown

Movement Type	Keyless Manual Winding, Bi-Metallic Temperature Compensating Balance
Case Material	Solid 18K Yellow Gold (Hallmarked Geneva 1892)
Diameter / Weight	52.5 mm / 118.4 grams
Dial & Hands	Grand Feu Enamel with Blued Breguet Hands and Moonphase aperture
Jewel Count	23 Natural Burma Rubies

1888

Archival Registry No. LPV-89240-CH

Certificate of Unconditional Authenticity

This certifies that the artifact catalogued as 1892 Patek & Cie Celestial Chronometer has undergone spectroscopic gold assay, movement component verification, and archival register cross-referencing by the Senior Conservators of L'Époque Vault.

Chief Appraiser: Henri de Saint-Just

Date of Issue: 3 September 2026

White-Glove Armored Courier Protocol

Every item valued over $2,000 is shipped exclusively via insured armored courier with dedicated personal custody. Prior to payment release, funds are held in secure bank escrow.

Upon receipt, the collector is granted a 30-day inspection window to perform independent metallurgical and horological validation. Full refund is unconditionally provided if the artifact fails to match the archival report in any facet.

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