With the given block time and block rewards, it takes around 11 months or more to produce 500.000 coins (that is the premined coins).
The estimated times calculated with block time is 60 seconds and block rewards is 1 coin per block.
In fact, in earlier phases, block rewards are less than 1 coin, so it will take more than 11 months for sure.
I think that it's too long period.
Thank you for your enquiry. The reason in which we made the coin so scarce and difficult to get hold of is we don't believe there is value in a high ROI project. We don't want early masternode holders to obtain a mass amount of BGX then have whales on the market. For example, with our project GenesisX which we still run very happily (been on hold for a few months due to getting BGX all up and running blockchain wise ect). In GenesisX, we had high ROI and this caused all early MN holders to obtain mass amounts and when our coin hit a decent value on the market it got dumped and sadly hasn't returned to that figure. Furthermore, we have all the proof it was none of the team and no pre-mine was dumped on the market. In conclusion, we are being extremely cautious with BitcoinGenX to make sure there are no market dumps and a steady price. We believe the price will reflects from the use-cases created and the projects we offer.
I know this has been an extremely long winded reply however I hope it helps answer your question.