Omega De Ville Prestige Co-Axial 39.5mm 424.13.40.20.02.001 | Grail Atlas
Omega
De Ville Prestige Co-Axial 39.5mm
Ref. 424.13.40.20.02.001
2014–present · 39.5mm · caliber Omega Cal. 2500C -- Co-Axial automatic, 25,200bph, 48h PR, 27j; anti-magnetic to 15,000 gauss; used in the mid-size De Ville Prestige
Pre-owned watches trade across a wide condition spectrum. These ranges are typical for the secondary market.
New Old Stock
Unworn example retaining original packaging, tags, and warranty documentation.
$3,058–$3,528
+30–50% vs median
Unpolished
Worn but the case has never been polished; original brushed and polished surfaces are intact.
$2,705–$2,940
+15–25% vs median
Polished
Case has been professionally or amateur polished at some point; edge definition is softened.
$1,999–$2,234
-15 to -5% vs median
Recently Serviced
Movement has been recently serviced with documented service records; case condition varies.
$2,352
At median
In-house manufacture caliber · caliber Omega Cal. 2500C -- Co-Axial automatic, 25,200bph, 48h PR, 27j; anti-magnetic to 15,000 gauss; used in the mid-size De Ville Prestige
Medium-large: suits wrists 6.5 in+ (16.5 cm+)
39.5 mm case. Wears confidently on average to larger wrists. May overhang on slender builds.
Not yet rated
Community + OSINT signals haven’t landed for this reference yet. We don’t publish a rating against zero signal — the number would mean nothing. Editorial body + caliber + market value still surface above; ratings appear once the signal corpus does.
The Co-Axial three-arm lever fork in Cal. 2500C is the primary authentication point; feel the star caseback relief with a fingernail to confirm genuine engraving versus a stamped fake.
Known issues in the market
Standard ETA-based movement swaps are the primary fraud vector; the Co-Axial fork in Cal. 2500C is architecturally distinct and visible through the caseback.
The Constellation star caseback engraving must have tactile relief; flat stamped stars indicate a non-genuine or replaced caseback.
Production ran approximately 2008 to 2020; examples with reference numbers outside this range may be a different generation.
Area
What to check
What is correct
Red flag
movement
Co-Axial escapement fork
Cal. 2500C with three-arm Co-Axial lever fork visible through caseback, distinct from standard ETA lever
Standard two-arm ETA lever without Co-Axial fork; any caliber designation other than 2500 or 2500C
caseback
Star caseback engraving relief
Deeply engraved star with relief felt under fingernail, sharp star-point edges
Flat stamped star with no tactile relief; rounded star points indicating a cast or stamped caseback
dial
Authentication guide
Last reviewed June 2026
The De Ville Prestige 39.5mm sits between the 37mm and 42mm variants. Same cal. 2500C Co-Axial with the slim dress-watch profile. The baton indices (rather than the Roman numerals of the 37mm) and the date window are the visual differentiators within the Prestige lineup.
Known reproduction risks
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LOW
Dial variant confusion within the Prestige lineup
Roman numerals on a watch sold as the baton-index 39.5mm -- different dial from the 37mm variant
Case diameter closer to 37mm than 39.5mm
The De Ville Prestige is not a high-volume fake target. Variant confusion within the Prestige lineup is a more frequent concern than outright reproduction.
Dial variants by era
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Era
Description
Identifiers
2014 to present (cal. 2500C)
Slim case (10.6mm) with applied baton indices and date window. Silver, blue, and black dial colorways. Leather strap standard. "Co-Axial" designation confirming the movement type. The case diameter is 39.5mm -- slightly larger than the 37mm but uses baton indices rather than Roman numerals.
Applied indices with uniform height, lacquered sunray base with even sheen
Printed indices, lacquer with bubbling or delamination, any index with different height from its neighbors
Common legitimate replacements
Dials on older De Ville Prestige models occasionally show lacquer aging; confirm no re-lacquering by checking for uniform sheen under a loupe.
Bracelets and straps are frequently replaced on pre-owned examples; original Omega-signed deployant confirms bracelet provenance.
Expert resources: Omega.com De Ville Prestige archive documentation for the 2008 to 2020 generation. Omega Forums for Cal. 2500C vs. ETA escapement identification.
Applied baton indices -- distinguishes the 39.5mm from the Roman-numeral 37mm Prestige
Date window at 3 o'clock
"Co-Axial" designation on the dial
Slim 10.6mm case profile
No screw-down crown -- the Prestige uses a push-pull crown
Leather strap standard
Service part flags
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Applied baton indices
Original: Applied baton indices with specific proportions -- narrower than many Omega sport-watch indices. Each index is applied with clean base edges. Under magnification the adhesive/prong attachment should not be visible from the front.
Replacement tells
Roman numeral chapter ring instead of baton indices -- indicates a 37mm Prestige dial installed in the 39.5mm case
Index alignment inconsistent -- one or more indices visibly canted or not at 90 degrees to the chapter ring
Adhesive or prong visible from the front at the base of an index
Movement caliber
Original: Cal. 2500C is automatic Co-Axial with 48-hour power reserve and bidirectional winding. The Prestige 39.5mm has a solid caseback -- caliber verification requires opening the case.
Replacement tells
Crown winds with no progressive resistance from a run-down state -- indicates a quartz or non-functional movement
Seconds hand discrete-ticks rather than sweeping smoothly
Case back markings
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2014 to present
Caliber 2500C designation
"De Ville" and "Co-Axial" text
"30 M / 100 FT" water resistance
Case reference and serial number
"OMEGA" and "SWISS MADE"
Solid caseback
Movement tells
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Cal. 2500C winds automatically with bidirectional rotor. Power reserve is 48 hours. A watch stopping in less than 24 hours on the wrist has a winding or mainspring issue.
The Prestige 39.5mm shares the cal. 2500C with the 37mm variant. Service records and documentation confirming caliber identity are standard expectations for a purchase with any history.
