Defect in a key component reportedly slows the Apple Watch

Apple found a defect in a key component of its watch during production, forcing the company to limit the supply of the new device, The Wall Street Journal reported, citing unidentified people familiar with the situation.

The issue is in the taptic engine of the watch, which mimics the sensation of being tapped on the wrist, the newspaper said. Apple declined to comment on the report.

The technology company is rushing to boost inventory of the watch, chief financial officer Luca Maestri said in an interview.

“We are working very, very hard to catch up from a supply standpoint — keep in mind this is not only a new product, but it’s an entirely new category,” he said.

Tests of the watch found a reliability issue with the part made by AAC Technologies Holdings, one of the two suppliers of Apple’s taptic engine, the newspaper said. Parts from the second supplier, Nidec, weren’t having the same issues.

AAC Technologies expects that its non-acoustic component division, which includes sensors used by Apple, will account for more than 30 percent of total sales this year, investor relations manager Ricky Man said Thursday. He declined to comment on the report that defects were found in Apple’s taptic engine supplied by the company.

The introduction of the watch, which has a touch screen display and works in tandem with a user’s iPhone, contrasts with typical rollouts of Apple products, when buyers have lined up to get new devices on the first day.

Angela Ahrendts, Apple’s retail chief, had told employees that tight inventory and high demand meant the watch initially wouldn’t be available for sale in company stores and urged workers to send shoppers online to make a purchase.

Customers have been able to schedule demonstrations in Apple Stores since April 10, when online preorders began. Shipment times quickly pushed past the official release date of April 24, with some customers promised delivery as late as June, depending on the version of the watch they purchased. Apple has sent messages to some buyers that their orders would be shipped earlier than expected.

A problem with the watch’s components would follow a supplier issue with Apple’s larger-screened iPhone 6 and 6 Plus, introduced last year. The phones were expected to have display screens made of sapphire, but Apple supplier GT Advanced couldn’t meet the requirements. The supplier filed for bankruptcy in October.

The new iPhones without the extra tough screens went on to fuel record sales globally, helping boost revenue in China by more than 70 percent last quarter.

This story was originally published April 30, 2015 at 9:26 AM with the headline "Defect in a key component reportedly slows the Apple Watch."