The clock is ticking for Apple’s smartwatch.

The tech giant has asked Asian suppliers to make as many as 6 million units of its three Apple Watch models for the first quarter, the Wall Street Journal reported Tuesday, citing unnamed sources.

The relatively large initial order — which far outpaces sales of other wearable devices from Samsung and Sony, among others — is a risky move for Apple.

The watch is the first new device developed solely under the stewardship of Apple CEO Tim Cook. If it’s a dud, it will cast doubt on his ability to create products without Apple’s late visionary, Steve Jobs.

Already the watch has proven problematic for the company, with insiders calling it a “black hole” because it sucked up so much time and energy, the Journal reported on Monday.

Apple ended up scrapping several health-related features, such as the ability to measure blood pressure, heart activity and stress levels, due to the complexity, the paper said.

The entry-level Sport model accounts for half the first-run order, while the mid-tier, stainless steel model count for one-third, according to Tuesday’s report.

Apple ordered a small number of the high-end model with 18-karat gold casing ahead of the April launch but plans to produce more than 1 million units per month in the second quarter, the Journal reported.

Apple didn’t comment on the report.

Shares of the Cupertino, Calif., company were up 53 cents at $127.61 in trading Tuesday morning.