Letting go of a really rare jewelry tank watch: a Classique “Tatum Opal” with a unique Australian **opal stone** dial. The dial is the whole point here. It has that lively, multicolor opal “fire” that shifts as you move it, and it looks especially striking set into the clean rectangular tank case with the integrated bracelet. Opal dials in this style are extremely uncommon; the only truly comparable piece I’ve been able to find is a Piaget opal stone tank, currently priced around $20,000, which really puts the rarity into perspective. Size is approximately 23 × 30 mm. The case and bracelet are 18K gold electroplated (5 micron, shown in the the photo), and the bracelet is full length with no links removed. **Condition:** Presents very well overall, with no major scratches or dents. The opal dial is intact, vibrant, and free of cracks. **Notes for full transparency:** The caseback screws are not gold plated, and one screw is slightly different from the others. I’m not sure if the screws are original, so I want to clearly disclose that up front. Original retail was **$2,558**. **Price:** **$699 OBO** PayPal F&F with insurance. Shipping from the US; CONUS preferred, but I can ship internationally at cost. Timestamp is shown in the last picture. Happy to answer any questions or provide additional close-ups if needed. Thanks!