The Oppo Find 9 is currently rumored to be made official sometime in H1 this year. Inline with that, a new rumor out of the company's home country of China is suggesting that the unveiling will take place in March.

This is not the first time we're hearing about a March unveiling for the handset - a rumor back in November had said exactly that.
Aside from the unveiling month, the new rumor also confirms several of the phone's key specs, including two different variants powered by Snapdragon 835 and 653 SoC with 6GB/128GB and 4GB/64GB memory configuration, respectively.
The Find 9 is said to sport a 5.5-inch QHD display, 21MP/16MP camera combo, a large 4,100mAh battery, and offer support for new VOOC flash charging. It's starting price is said to be RMB 3,999 (around $580).
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