The delays apply to both iMac models, as the 21.5-inch variety was previously advertised to ship in 2 to 3 weeks, while the 27-inch model was available in 3 to 4 weeks. News of the delays surfacing in France were first reported on Monday by MacGeneration.
The delays do not yet affect Apple's U.S. online store, though if recent trends are any indication, the new estimated shipping times will be reflected in the company's American store in due time.
Shipping times for the smaller 21.5-inch model also began slipping late last month to between 2 and 3 weeks. The updates to Apple's European online stores on Monday suggest that the company continues to see production problems with its redesigned iMac.
Those problems have persisted since the new iMacs first went on sale in December. In the holiday quarter, Apple's Mac sales dropped 17 percent, a decrease the company attributed to severe constraints on the new, thinner iMacs.
Continued setbacks for the iMac also cast into doubt a recent rumor that claimed Apple's suppliers had solved their production problems. However, some 21.5- and 27-inch iMac units did begin trickling into Apple's reseller channels last week.
That trend has continued in the U.S., as reseller MacConnection reflects availability of all 4 standard retail configurations as of Monday with an instant $20 discount per model. A handful of other custom configurations are also popping in and out of stock at other retailers, as can be seen below in our price guide snippet: