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Authentication Guide · Omega · 105.012-65, 145.012-67, ST 105.012

Spotting a Fake Omega Speedmaster Pre-Moon 105.012-65/145.012-67

Learn to identify counterfeit Omega Speedmaster Pre-Moon models with expert tips on authenticating the 105.012-65 and 145.012-67 references.

Omega Speedmaster (Pre-Moon)
Photo: Shane Lin · CC BY-SA 2.0 · source
By Catch Fakes Authentication Desk4 min read

The Omega Speedmaster Pre-Moon models, specifically the 105.012-65 and 145.012-67, are highly coveted by collectors and enthusiasts alike. These watches not only hold historical significance as predecessors to the Moonwatch but also represent a pinnacle of mid-20th-century watchmaking. Unfortunately, their desirability has made them prime targets for counterfeiters. The market is flooded with fakes that can deceive even seasoned collectors. Given the substantial financial investment required to acquire an authentic piece, understanding the nuances of these models is crucial. This guide will arm you with the knowledge to discern genuine Speedmasters from imitations, focusing on the specific details that define the 105.012-65 and 145.012-67 references.

The Dial Printing

One of the most telling signs of a counterfeit Omega Speedmaster Pre-Moon is the quality of the dial printing. Authentic dials from the 105.012-65 and 145.012-67 references should feature crisp and clear printing. Pay close attention to the 'Professional' text, which should be perfectly aligned and evenly spaced. The 'T SWISS MADE T' marking at the bottom of the dial indicates the use of tritium lume and should be present. Any smudging, misalignment, or incorrect font can indicate a fake.

Movement Caliber Verification

The heart of the Speedmaster Pre-Moon is the calibre 321 movement, a column-wheel chronograph movement renowned for its precision and durability. When authenticating, ensure the movement is indeed a calibre 321 by checking for the correct bridge shapes and the column wheel's presence. Counterfeiters often use inferior movements that lack the intricate finishing and design of the original. The movement should also have the Omega logo and calibre number engraved.

Caseback Engravings

The caseback of the Pre-Moon Speedmasters should have distinct engravings. Look for the 'Speedmaster' and 'Seamaster' engravings, which should be deeply etched and not shallow or uneven. The Hippocampus logo should be prominently featured, with fine detailing that is often missing in counterfeits. Additionally, the reference number (105.012-65 or 145.012-67) should be clearly engraved inside the caseback.

Bezel Insert Material and Font

The bezel of the Pre-Moon Speedmaster is another critical area to inspect. Authentic models feature a black aluminium bezel insert with a tachymetric scale. The font used should be consistent with Omega's design from the 1960s, with the 'dot over 90' (DON) being a key characteristic of genuine bezels from this era. Counterfeit bezels often use incorrect fonts or positions for the markers.

Bracelet End-Links and Clasp

The original bracelets for the 105.012-65 and 145.012-67 often came with reference 1039 or 1506, featuring end-links marked 516. The fit should be snug against the case without gaps, and the clasp should have the Omega logo and correct reference numbers engraved. Counterfeit bracelets may have poor finishing, incorrect markings, or a loose fit.

Lume Colour and Aging

The lume on authentic Pre-Moon Speedmasters was originally tritium, which naturally ages to a yellowish patina over time. If the lume appears too white or uniformly coloured, it may indicate a relumed or counterfeit dial. The hands and indices should show consistent aging, and any discrepancies could be a red flag.

Weight and Sound

An authentic Omega Speedmaster Pre-Moon should have a substantial weight due to its steel construction and quality movement. When winding the watch, the sound should be smooth and consistent, without any grinding or harshness. Counterfeit watches often feel lighter and may produce a tinny or uneven winding sound.

Red Flags at a Glance

  • Misaligned or smudged dial printing
  • Absence of calibre 321 movement
  • Shallow or uneven caseback engravings
  • Incorrect bezel font or 'dot over 90' missing
  • Loose bracelet end-links
  • Uniformly white lume
  • Lightweight feel
  • Tinny winding sound

FAQ

What movement should be in a Pre-Moon Speedmaster?

The Pre-Moon Speedmasters should contain the calibre 321, a column-wheel chronograph movement.

How can I identify an original Speedmaster bezel?

Look for a black aluminium insert with a 'dot over 90' (DON) and ensure the font matches Omega's 1960s style.

What should the lume look like on a vintage Speedmaster?

The lume should be tritium, naturally aging to a yellowish patina. Uniformly white lume may indicate a relumed dial.

Final Word

Authenticating an Omega Speedmaster Pre-Moon 105.012-65 or 145.012-67 requires a keen eye for detail and knowledge of the specific characteristics that define these iconic watches. While this guide provides a comprehensive overview, it's always advisable to seek a second opinion from a trusted expert or watchmaker, especially when dealing with high-value vintage pieces. Remember, the stakes are high, and ensuring authenticity is paramount to making a sound investment.


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