For sale is a **rare and increasingly hard-to-find Heuer Ref. 12**, often referred to as the “Big Shield” due to the oversized Heuer logo on the dial. This model features a hand-wound **Valjoux 7734 chronograph movement**, housed in a black PVD-coated brass case. Timestamp: [https://imgur.com/a/ref-12-timestamp-VDF5E40?s=sms](https://imgur.com/a/ref-12-timestamp-VDF5E40?s=sms) Function Video: [https://imgur.com/a/ref-12-function-ARjk4w5?s=sms](https://imgur.com/a/ref-12-function-ARjk4w5?s=sms) # Specs & Condition: * **Movement**: Manual-wind Valjoux 7734 * **Service**: April 2025 by Ciccio Vintage * Full teardown and cleaning * New mainspring * Replacement stem * **Timekeeping**: Currently running at **+4 seconds/day** * **Crystal**: Some heavier scratches near the top, we did not replace the crystal out of not wanting to harm the PVD, on wrist they are not too noticeable. * **Case**: Original black PVD shows **excellent preservation overall** * Minor cosmetic wear on underside near caseback * **Crown**: Worn; most of the black finish has faded, revealing the brass # Included: * Watch head only (no box or papers) # Price: **$3,200 USD** via PayPal F&F / Zelle / Wire \[No trades at this time.\] # Located in the U.S. — happy to ship CONUS via insured USPS or UPS. International shipping available at buyer’s cost. Feel free to message me with questions, requests for additional photos, or timegrapher results. Thanks for looking! Let me know if you want a more casual tone for Reddit or a version with photos in mind.