The product is a genuine old new stock Omega Seamaster Professional black dial, measuring 30.50mm in diameter. This Swiss-made dial features non-numeric hour marks, making it compatible with Omega Seamaster Professional and Omega Seamaster models. You can see in the picture there are parts of the lume missing at the 12 o’clock and slightly at the 6 o’clock position. The missing lume is the reason for the cheap price. Please do not purchase if this is an issue for you. Any questions feel free to ask