Hi everyone, For those who love the bold geometry of 1970s design but want the precision of Omega’s early Co-Axial era, the **De Ville X2** delivers both in one unmistakable square case. It’s one of the few modern Omegas that truly breaks away from the round-case tradition — sharp, architectural, and confident — yet surprisingly comfortable thanks to its short lugs and balanced 35 × 35 mm profile (wearing more like \~40 mm on the wrist). This example (ref. 7813.50.31) features the **Co-Axial Cal. 2610A**, freshly serviced in **November 2025** and performing superbly (**\~1 s/day, amplitude 310°, B.E. 0.0 ms @ L.A 38°**). The mirror-finished applied numerals, deep-black dial, and crisp square Big-Date window make it a truly eye-catching piece that still flies under the radar among Omega collectors. For a deeper look into the design story and movement lineage, here’s an excellent reference article: 👉 [Omega Forums: De Ville X2 Co-Axial Story](https://stories.omegaforums.net/de-ville-x2-chronograph-square-case-co-axial-3202/) **Condition** **Dial:** Original black dial in excellent condition with no blemishes or patina. Applied Roman numerals are sharp and reflective. **Case:** Stainless-steel 35 mm × 35 mm square case (approx. 40 mm equivalent), featuring brushed sides and polished bevels. Sharp edges, crisp lugs, minimal wear. **Crystal:** Sapphire, clean and scratch-free. **Crown:** Original signed Omega crown, operates smoothly. **Movement:** Omega Cal. 2610A Co-Axial Chronometer — freshly serviced 11/2025, running flawlessly (**\~1 s/day, 310° amp, 0.0 ms B.E.**). **Caseback:** Features the engraved De Ville X2 “Co-Axial Escapement” motif, clean and well-preserved. **Strap:** Aftermarket black leather strap with aftermarket buckle, unworn condition. **Price: $1,690 USD** Includes **insured worldwide DHL Express shipping (3–5 business days)** — **tariffs covered by seller**. **Payment & Terms** Payment via **Wise, bank transfer, crypto, or PayPal G&S (+4.5%)**. All sales final unless misrepresented. Happy to provide extra pics, wrist shots, or videos on request. Feedback available on **Reddit** and **Omega Forums**. *Note: As with all vintage and early Co-Axial watches, this piece is* ***not waterproof****. While seals were checked during service, it’s best kept away from water, humidity, and steam to preserve its integrity.* If you’ve been curious about Omega’s short-lived experiment with square Co-Axials, this is your chance to own one that’s freshly serviced and ready for its next wrist. Always happy to chat watches — feel free to reach out anytime!