The winner said he thought he was seeing things after checking his ticket on Saturday night.

The man, who did not want to be identified, held one of the 10 division-one winning entries across the nation, with each winner collecting $382,311.53.

The man, who purchased his ticket online, said he planned to use his winnings to enjoy "every moment" of his retirement.

In addition to winning division one, his System 8 entry also scored division three 12 times and division four 15 times, boosting his total winnings to $393,878.18.

"It was a very nice surprise," the man said after confirming his win with NSW Lotteries.

"Thank you very much. It's great to hear this is real.

"It's going to be very handy I can tell you that.

"I checked my ticket on Saturday night. I couldn't believe it. I thought I was seeing things.

"It was a very delightful evening, one I will certainly never forget."

IN OTHER NEWS:

When asked how he planned to enjoy his windfall, the man said he would use it to relish every moment of his retirement.

"This will certainly change my retirement plans," he said.

"I'll be able to do a little bit more traveling now.

"And I'll invest some of it. It will be a nice little nest egg for my retirement."

The winning numbers in Saturday Lotto draw 3989 on Saturday were 6, 33, 16, 27, 17 and 8, while the supplementary numbers were 26 and 28.

Among the ten winning entries were three from Victoria, two each from NSW, South Australia and Western Australia, and one from Queensland.