# Omega De Ville Trésor (Reference 435.13.40.22.06.001) – A Modern Dress‑Watch Classic Omega’s De Ville Trésor line has been a quiet staple of the brand’s dress‑watch portfolio since its debut in 1949. The latest 40 mm stainless‑steel version – reference 435.13.40.22.06.001 – updates the original’s slender silhouette with a contemporary Co‑Axial Master Chronometer movement, a power‑reserve indicator and a polished two‑tone dial. Below we break down how the watch performs in the four key areas that matter to a serious collector. --- ## Design & Case The case measures a crisp **40 mm** in diameter, a size that sits comfortably between classic 36‑mm dress watches and today’s trendier 42‑mm models. Its **polished stainless‑steel** construction is deliberately thin, echoing the “slim and elegant” language used by Omega when the line launched. The case back is also polished, allowing the watch to catch light from every angle. The dial is a **domed two‑tone silvery** face that balances a clean, minimalist layout with a subtle depth created by the domed glass. A **small‑seconds sub‑dial at 6 o’clock** and a **power‑reserve indicator at 12 o’clock** are the only complications, keeping the dial uncluttered while still offering useful information. The hour markers are applied indices with a brushed finish that contrast nicely against the glossy dial background. A **30 m (3 bar)** water‑resistance rating is standard for a dress watch of this construction; it protects against accidental splashes but is not intended for swimming. The case is secured with a **screw‑down crown** that meets METAS‑approved sealing standards. Overall, the aesthetics are unmistakably dress‑watch‑centric: refined, understated and instantly appropriate for formal or business attire. --- ## Movement & Performance At the heart of the Trésor sits Omega’s **Co‑Axial Master Chronometer Calibre 8934**. This is a **manual‑winding** movement featuring the brand’s patented Co‑Axial escapement, which reduces friction and extends service intervals compared with traditional lever escapements. The calibre is **METAS‑certified**, meaning it has passed the Swiss Federal Institute of Metrology’s rigorous tests for accuracy (≤  + 5 seconds per day), anti‑magnetic resistance (up to **15 000 gauss**) and overall chronometric performance. The 8934 offers a **power reserve of approximately 48 hours**, displayed on the sub‑dial at 12 o’clock. While not a long‑lasting reserve by modern standards, it is ample for a manual‑wind dress watch that is typically worn a few hours each day. The movement’s beat rate is **28,800 vph (4 Hz)**, delivering a smooth sweep of the seconds hand without the “tick‑tock” feel of lower‑grade mechanical movements. Because the calibre is hand‑wound, the wearer must remember to wind the watch daily – a ritual that many traditionalists appreciate. The manual winding also contributes to a slimmer case profile, reinforcing the watch’s elegant silhouette. --- ## On the Wrist Fit and comfort are where the Trésor truly shines. The **lug‑to‑lug length** is roughly **44 mm**, giving the watch a balanced presence on a 38‑ to 42‑mm wrist without extending beyond the wrist line. The thin case (approximately **7 mm** thick) sits low on the wrist, allowing the dress shirt cuff to slide over it without catching. Omega supplies the model with a **high‑quality grey leather strap** that complements the silvery dial. The strap’s tapered taper and concealed stitching add to the watch’s refined look, while the alligator‑grade leather provides a soft, flexible feel after a short break‑in period. The **fold‑over clasp with safety release** ensures a secure fit without the bulk of a traditional buckle. Wearing the Trésor under a suit or tuxedo feels natural; the polished steel case catches ambient light without being ostentatious, and the modest power‑reserve window adds a subtle point of interest. The only minor drawback is the modest **30 m water resistance** – a wearer should avoid exposure to rain for extended periods, as the crown seal is not designed for heavy moisture. --- ## Value & Verdict Omega positions the De Ville Trésor in the **premium dress‑watch segment**, alongside the brand’s De Ville Prestige models. While the exact retail price is not disclosed in the source material, the watch’s combination of a **METAS‑certified Co‑Axial Master Chronometer**, a polished 40 mm case and a high‑grade leather strap places it firmly in the **upper‑mid‑range** of Swiss dress watches. From a value perspective, the Trésor delivers on several fronts: * **Technical pedigree** – the 8934 calibre brings the same anti‑magnetic and chronometric standards found in Omega’s sportier lines, but in a dress‑watch package. * **Aesthetic purity** – the thin, polished case and minimalist dial make it a timeless piece that will not feel dated in a decade. * **Wearability** – the slim profile, balanced lug‑to‑lug and comfortable leather strap make daily wear effortless. The primary compromises are the **manual‑wind requirement** and the **limited water resistance**. Collectors who prefer automatic movements or plan to wear the watch in more active environments may look elsewhere. Nonetheless, for anyone seeking a dress watch that marries classic styling with modern, METAS‑approved performance, the Omega De Ville Trésor is a compelling choice. **Verdict:** The De Ville Trésor (435.13.40.22.06.001) is a masterclass in understated luxury. Its thin 40 mm case, polished steel finish, and METAS‑certified manual‑wind Co‑Axial movement create a watch that feels both historic and contemporary. While the need for daily winding and modest water resistance are worth noting, they do not detract from the overall experience. In the crowded field of Swiss dress watches, the Trésor stands out as a refined, technically robust option that justifies its premium positioning.