Strong turnout for world's first glimpse at Apple Watch

A spokesman for Apple in Sydney declined to comment on the memo, citing company policy.

At an Apple Store in Hong Kong there was no queue, although half a dozen customers gathered near the shop door, cheering when it was opened. Demos were by online registration, after which a Reuters reporter received a demo without having to wait.

"I didn't know it's the first day. I am here to buy an iPad," said a 26-year-old customer who gave her name only as Ms Jian, visiting from China's Chongqing. "I will take a look at the watch later."

Apple shares closed 0.76 percent higher at $126.56 on Thursday.