The De Ville Prestige is Omega’s classic dress line, and this reference is the 39.5 mm men’s model from the 424-series Co-Axial Chronometer generation. It pairs a plain three-hand-and-date layout with a slim round steel case and a leather strap, aimed at formal and everyday dress wear rather than any tool function.
At its centre is the Co-Axial calibre 2500, a chronometer-certified automatic movement. The reference sits in the accessible mechanical part of Omega’s range: a regular-production dress watch rather than a limited or complicated piece.
The 424 generation brought the Prestige line to a 39.5 mm case with the Co-Axial 2500 across several dial and strap combinations. This reference, 424.13.40.20.02.001, is the steel-on-leather build with a two-zone silver dial and Roman numerals at the quarter hours.
The dial is a two-zone silver dial. A flatter centre section carries the printing and hands, and a stepped outer zone holds the minute track. Hour markers combine Roman numerals at the 12, 3, 6 and 9 positions with polished baton markers at the remaining hours.
The hour and minute hands are rhodium-plated and run silver-tone against the silver dial, with a thin central seconds hand. A framed date window sits at the 3 o’clock position, showing a white date disc with black numerals.
Printed dial text runs the applied Omega symbol and OMEGA name below 12, DE VILLE beneath that, and CO-AXIAL over CHRONOMETER above 6. SWISS MADE sits at the base of the dial below the 6 marker.
The case is round stainless steel at 39.5 mm in diameter, built to a slim dress profile with a polished finish. Omega publishes a thickness of 9.75 mm, a lug-to-lug of 44.80 mm and a 20 mm space between the lugs.
The crystal is a domed sapphire with anti-reflective treatment applied to the inside. There is no date magnifier over the 3 o’clock window. The crown is a push-pull type, not screw-down, and sits unguarded against the case flank.
The caseback is a solid steel back with no display window. The bezel is a fixed, smooth polished steel bezel with no timing or measurement function, so it reads as part of the case profile rather than a working complication. Water resistance is rated at 30 metres.
This reference is delivered on a black leather strap. Omega specifies an alligator leather surface over a calf leather underside, fastened with a stainless steel pin buckle.
The strap fits the 20 mm gap between the lugs and can be swapped for any standard 20 mm strap. The pin buckle is the simplest closure type, sized by choosing the buckle hole rather than by removing links.
Because the strap is a standard-width leather band on a pin buckle, there is no folding clasp, extension system or micro-adjustment on this build. The steel-bracelet configuration of the same silver dial exists under a different reference suffix and is noted in the Variations section.
The watch runs the Omega calibre 2500, a self-winding chronometer movement with the Co-Axial escapement. It is built on the ETA 2892-A2 architecture by way of Omega’s calibre 1120, with the Co-Axial escapement and a free-sprung layout added.
The movement carries 27 jewels and holds a 48-hour power reserve. Examples from this era run at the reduced 25,200 vibrations per hour (3.5 Hz) rate that the calibre adopted from its C generation onward, and the movement is finished with rhodium plating. Chronometer certification is to the ISO 3159 standard, with a rated accuracy of -4 to +6 seconds per day.
Functions are hours, minutes, central seconds and a date at 3 o’clock. The date is quickset from the intermediate crown position, and the outer crown position sets the time. Winding is automatic through wear or by turning the crown in the neutral position.
The case, bezel, caseback and buckle are stainless steel, specified by Omega as 316L, chosen for corrosion resistance and a high polish. The crystal is synthetic sapphire with an internal anti-reflective coating, rated 9 on the Mohs hardness scale.
The dial furniture, the hands and the baton markers, is rhodium-plated for a silver-tone appearance. The strap is alligator leather on the outer surface with a calf leather lining, and the buckle is stainless steel.
The overall material set is a conventional polished-steel dress watch with a sapphire crystal and a leather strap, with no ceramic, gold or titanium content on this reference.
A full set for a 2014 example of this reference includes:
Older version
Newer version (Gen 2, approximately 2022 onward)
The reference was sold with the mid-2010s wooden presentation box during its 2014 sale window. The compact ocean-blue recycled box is Omega’s later packaging format and appears on examples repackaged or serviced from around 2022 onward, so it is not the original delivery box for a 2014 watch. A set described as complete should be read against the box generation that matches the watch’s sale era.
A 2014 example was sold with Omega’s international warranty of the period, which ran for 2 years from the date of purchase. This reference is a Co-Axial chronometer rather than a Master Chronometer, so it carried the standard warranty term of its era. Coverage was documented on a red plastic International Warranty card completed with the reference and serial numbers and stamped by the selling dealer, held in a cream card holder alongside the red Pictograms card.
Older version (Gen 1, approximately 2012 to 2018)
Newer version (Gen 2, approximately July 2018 to 2022)
Service-warranty papers, typically a 24-month coverage, are issued by Omega customer service on examples that have been serviced. This reference uses calibre 2500 and is not a METAS Master Chronometer, so a Master Chronometer certificate card is not part of a correct set for it.
The original warranty has expired on every 2014 example as of 2026. On the resale of a full set, the completed, dealer-stamped and dated warranty card is the primary authenticity document, so a card printed with the matching serial and reference carries more weight than colour alone or an undated card.
Omega’s product page for the reference lists it as no longer available, placing it among the discontinued 424-series Prestige builds. It ran as a standard catalogue model rather than a numbered or time-limited release.
At 39.5 mm across and 9.75 mm thick, this is a slim dress watch that wears close to its stated size. The thin bezel gives the silver dial a relatively open face for the diameter, and the flat profile slips under a shirt cuff.
The 44.80 mm lug-to-lug and 20 mm strap width suit wrists in roughly the 6.5 to 7.5 inch range. On the leather strap with a pin buckle the watch is light, at around 60 grams total, and sits flat rather than tall.
The configuration fits formal and business dress wear, and the plain three-hand-and-date layout keeps it legible for daily use. It is a dress watch first, without the case height or water resistance intended for sport use.
This reference is a single fixed configuration: a 39.5 mm stainless steel case, a two-zone silver dial with Roman numerals at 12, 3, 6 and 9 and polished baton markers at the other hours, a date at 3 o’clock, a black alligator leather strap on a steel pin buckle, and the Co-Axial calibre 2500. It does not vary internally across its run.
Neighboring references (separate references, specifications do not carry across)
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