Watch Reference by S. V.
  • Brands
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    • Zenith
  • Reference Points
    • Audemars Piguet
      • Star Wheel
        • Audemars Piguet Star Wheel 25720BA
    • Rolex
      • GMT-Master
        • Rolex GMT-Master 6542
        • Rolex GMT-Master 16750
    • Vacheron Constantin
      • 222
        • Vacheron Constantin 222 – Ref. 44018/411
        • Vacheron Constantin 222 – Ref. 46004/411
    • Zenith
      • El Primero
        • Zenith El Primero A386
  • History & Technical Guides
    • IWC
      • IWC Portugieser Ref. 325
      • IWC Ingenieur SL Ref. 1832
    • Omega
      • Omega Speedmaster Ref. CK2915
  • Tables
    • Production Dates
      • Audemars Piguet Serial Numbers with Production Dates
      • Longines Serial Numbers with Production Dates
      • Omega Speedmaster Serial Numbers with Production Dates
      • Panerai Serial Letters with Production Dates
      • Patek Philippe Serial Numbers with Production Dates
      • Rolex Clasp Codes with Production Dates
      • Rolex Serial Numbers with Production Dates
      • Seiko Serial Numbers with Production Dates and Movement Types
      • Dating English Hallmarks on Silver and Gold
      • Vacheron Constantin Serial Numbers with Production Dates
    • Manufacturer Codes
      • Omega Metal Codes
      • Patek Philippe Caliber Numbers
      • Patek Philippe Metal Codes
      • Rolex Country Codes
      • Rolex Metal Codes
      • Rolex Reference Numbers (6-Digit)
      • Seiko Serial Numbers with Production Dates and Movement Types
    • Models
      • Panerai Pre-Vendome Models
    • Hallmarks
      • Dating English Hallmarks on Silver and Gold
  • Contact
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Watch Reference by S. V.

All About Watches, Serials, Reference Numbers & Specs

Watch Reference by S. V.
  • Brands
    • Audemars Piguet
    • IWC
    • Longines
    • Omega
    • Panerai
    • Patek Phillippe
    • Rolex
    • Seiko
    • Universal Genève
    • Vacheron Constantin
    • Zenith
  • Reference Points
    • Audemars Piguet
      • Star Wheel
        • Audemars Piguet Star Wheel 25720BA
    • Rolex
      • GMT-Master
        • Rolex GMT-Master 6542
        • Rolex GMT-Master 16750
    • Vacheron Constantin
      • 222
        • Vacheron Constantin 222 – Ref. 44018/411
        • Vacheron Constantin 222 – Ref. 46004/411
    • Zenith
      • El Primero
        • Zenith El Primero A386
  • History & Technical Guides
    • IWC
      • IWC Portugieser Ref. 325
      • IWC Ingenieur SL Ref. 1832
    • Omega
      • Omega Speedmaster Ref. CK2915
  • Tables
    • Production Dates
      • Audemars Piguet Serial Numbers with Production Dates
      • Longines Serial Numbers with Production Dates
      • Omega Speedmaster Serial Numbers with Production Dates
      • Panerai Serial Letters with Production Dates
      • Patek Philippe Serial Numbers with Production Dates
      • Rolex Clasp Codes with Production Dates
      • Rolex Serial Numbers with Production Dates
      • Seiko Serial Numbers with Production Dates and Movement Types
      • Dating English Hallmarks on Silver and Gold
      • Vacheron Constantin Serial Numbers with Production Dates
    • Manufacturer Codes
      • Omega Metal Codes
      • Patek Philippe Caliber Numbers
      • Patek Philippe Metal Codes
      • Rolex Country Codes
      • Rolex Metal Codes
      • Rolex Reference Numbers (6-Digit)
      • Seiko Serial Numbers with Production Dates and Movement Types
    • Models
      • Panerai Pre-Vendome Models
    • Hallmarks
      • Dating English Hallmarks on Silver and Gold
  • Contact

Posts by author

svahabi

30 posts
  • Seiko

Seiko Serial Numbers with Production Dates and Movement Types

How is the Date Calculated The first digit of the serial number tells you the last digit of the year the watch was made. For many of Seiko’s movements we…
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  • Zenith

Zenith El Primero A386

No other watch so immediately evokes the glamourous world of 1950s international air-travel as the Rolex GMT-Master. Advertised at the time as being “the ideal watch for air-pilots, ships’ captains,…
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  • Audemars Piguet

Audemars Piguet Star Wheel 25720BA

General Brand: Audemars PiguetModel: Star WheelReference: 25720BA | BA25720Production Years: 1991 – 1996 Dial Production Methods: Guilloche Engraving Audemars Piguet Star Wheel 25720 with Guilloche Dial (Photo from Hodinkee) Audemars Piguet…
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  • Longines

Longines Serial Numbers with Production Dates

Please have in mind that the time table for the Longines serial numbers is not 100% accurate but very close to +/- 1 years. Dating back your vintage Longines watch…
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  • Omega

Omega Speedmaster Serial Numbers with Production Dates

Serial number dating from this table is not a 100% accurate way to date the watches, but is generally accepted to be accurate within 6 to 12 months.
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Omega Seamaster OT 2520 (Photo from Chriestie's)
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  • Omega

Omega Metal Codes

Derived from a catalogue with Omega components from 1993.
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Rolex Oyster Perpetual
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  • Rolex

Rolex Clasp Codes with Production Dates

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rolex daytona panda 6263
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  • Rolex

Rolex Serial Numbers with Production Dates

The Rolex serial numbers are found between the lugs on the side of the case at the 6 o’clock side, behind the bracelet. This 4-8 digit number is engraved by Rolex on…
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  • Audemars Piguet

Audemars Piguet Serial Numbers with Production Dates

The letters in the Audemars Piguet serial numbers refer to a particular manufacturing series and also help us date Audemars Piguet watches that are newer than 1975. Below are the…
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  • Audemars Piguet

Audemars Piguet Star Wheel

From its introduction in the late 1980s, the highly unusual, short-lived Star Wheel collection has represented one of Audemars Piguet more interesting modern endeavors. Inspired by historical wandering hour complications,…
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Watch Reference by S. V.
All About Watches, History, Specs, Serial & Reference Numbers

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