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The Encyclopedia of Horology

Wristwatch · Manual-wind rectangular wristwatch

Longines platinum rectangular manual-wind wristwatch

Partially verified

This rectangular wristwatch by Longines is constructed with a platinum case, reported as hand-crafted. The case features pave-set single-cut diamonds on the bezel, lugs, and top, with blue sapphire accents. It is equipped with a blue sapphire cabochon crown. The watch has a silver-colored dial with Arabic numerals and analog hands. The movement is a manual-wind caliber described as an early 17-jewel Swiss mechanism. The piece is fitted with a black cord strap secured by a 1/20 12kt white gold-filled clasp. Measuring 14.1mm by 45mm, the watch has a total weight of 18.9 grams. The auction description indicates the piece is from the early 1900s and is currently in running condition, though service is suggested for optimal timekeeping. The case back is of the hinged snap-on variety.

Front view of the Longines platinum and diamond rectangular wristwatch on a black cord strap.
Front view of the Longines platinum and diamond rectangular wristwatch on a black cord strap. — Hannosh's (via Invaluable). Rights pending — permission not yet requested. Original source

Catalogue identity

Source
www.invaluable.com
Category
Wristwatch · Manual-wind rectangular wristwatch
Maker / attribution
Longines
Reference
Not recorded
Catalogue / lot identifier
144
Source-reported date
early 1900's
Source-reported place
Switzerland

Source-reported attribution and specifications are not independent authentication. A listing does not establish present ownership, current display, availability or permission to reproduce.

Object description

Case and Dial Design

The watch is housed in a rectangular platinum case that has been finished with extensive gem setting. The surface of the case, including the bezel and the prominent hooded lugs, is decorated with pave-set single-cut diamonds. Further accenting the design are blue sapphire stones integrated into the metalwork and a blue sapphire cabochon set into the winding crown.

The dial is silver-toned and features Arabic numerals. The overall dimensions of the case are 14.1mm by 45mm. The construction includes a hinged snap-on case back.

Evidence for this section
  • “The watch case was entirely hand crafted in Platinum set with single cut, antique diamonds and blue sapphire gemstones.”
  • “This watch has pave set diamonds all on the case top, lugs and bezel with a gorgeous blue sapphire cabochon crown”
  • “Case Back: Platinum hinged snap on”

Movement and Functionality

The timepiece is powered by an early Swiss-made manual-wind movement containing 17 jewels. It provides analog timekeeping functions. The watch is currently reported to be in running condition.

Because it is a vintage instrument, the auction house notes that the movement may require professional service to achieve optimal timekeeping performance. The movement is not explicitly stated to be original to the case, though it is identified as a component of the lot.

Evidence for this section
  • “Movement: Early General Swiss 17 jewels manual wind”
  • “This Longines watch is running, and is in magnificent condition for its old age.”
  • “We will always suggest a professional service on all vintage and pre/owned watches.”

Components and Condition

The watch is paired with a black cord strap. The clasp is identified as a Hadley 1/20 12kt white gold-filled component. The total weight of the watch with the strap assembly is recorded as 18.9 grams.

The condition is described by the auction house as vintage and pre-owned.

Evidence for this section
  • “Strap/Band/Bracelet: Black cord”
  • “Clasp/Buckle: Hadley 1/20 12kt white gold filled”
  • “Condition - Vintage/Preowned.”

Open research questions

  • What is the specific movement caliber number used in this watch to verify production era?
  • Are there hallmarking details inside the case back that provide more specific manufacturing context?

Source evidence

Recorded claims and source quotations for Longines platinum rectangular manual-wind wristwatch
FieldSource-reported valueSource quotation
MakerLongines“Artist or Maker Longines”
Case MaterialPlatinum“The watch case was entirely hand crafted in Platinum”
Movement17-jewel manual wind“Movement: Early General Swiss 17 jewels manual wind”
Case Dimensions14.1mm x 45mm“Case Measurement: 14.1mm x 45mm”
Total Weight18.9 grams“Item Weight: 18.9 grams”
Strap Clasp1/20 12kt white gold filled“Clasp/Buckle: Hadley 1/20 12kt white gold filled”
DatingEarly 1900s“Date early 1900's”

Visible details

  • Blue sapphire cabochon set in the winding crown
  • Black cord strap with metallic clasp
  • Pave-set diamonds on the extended hooded lugs
  • Rectangular dial with Arabic numerals

Research qualifications

  • The exact year of manufacture is stated only as 'pre 20's' or 'early 1900's'
  • The origin of the strap and clasp is not explicitly linked to the Longines factory production

Photograph identity and source facts were screened before import; rights clearance remains pending.

Consulted source

Antique Longines Platinum Art Deco Diamond & Sapphire Hooded Lugs Manual Wind Wrist Watch

Reviewed 2026-10-26 · Record e5fc35137a

Terms in this record

Glossary explanations for terms named in this object’s record.

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