Hundreds of workers in Germany went on strike Monday, just as pre-Christmas sales were set to peak, in a dispute over pay and conditions that has raged for months.

Germany is Amazon’s second-biggest market, behind the United States, and sales there grew almost 21 percent in 2012, to $8.7 billion, a third of its overseas total. Amazon took its most daily orders in Germany last Dec. 16, when almost 4 million articles were bought, with shipments peaking Dec. 17.

Amazon, which employs 9,000 warehouse staff members in Germany plus 14,000 seasonal workers at nine distribution centers, said that 1,115 employees joined the strike at three sites but that there have been no delays to deliveries.

“Our customers can continue to rely on us for the prompt delivery of their Christmas presents,” a spokeswoman said, adding that Amazon uses its whole European logistics network during the Christmas period to ensure delivery times.

The Verdi union said that up to 700 workers joined the strike in Amazon’s logistic center in Bad Hersfeld, plus 500 to 600 in Leipzig. For the first time, the union also called a strike in Graben, where Verdi said 600 workers took part.

“The Amazon system is characterized by low wages, permanent performance pressure and short-term contracts,” Verdi board member Stefanie Nutzenberger said in a statement.

A delegation of German workers was set to rally at Amazon’s headquarters in Seattle along with U.S. unions. In addition, workers in Amazon’s center in the German town of Werne will protest Tuesday, while strikes are expected to continue all week in Leipzig and until Wednesday in Bad Hersfeld.

“Amazon must realize it cannot export its anti-union labor model to European shores. We call on the company to come to the table and sign a global agreement that guarantees the rights of workers,” said Philip Jennings of the global trade union UNI.

Verdi organized several short stoppages this year to try to force Amazon to accept collective-
bargaining agreements in the mail-order and retail industry as benchmarks for workers’ pay at Amazon’s German distribution centers.

But Amazon’s German country head Ralf Kleber said the company would not bow to pressure from striking workers and was more worried about bad weather hurting Christmas deliveries, he said in an interview last month.

Kleber said that Amazon pays warehouse workers well according to the standards of the logistics industry, starting at $13.11 an hour, and does not think the more generous terms of the mail-order and retail sector are justified.

Amazon recently announced that it would build three new logistics centers in Poland and two in the Czech Republic, prompting speculation that it could seek to shift work across the border from strike-hit centers in Germany.

But Kleber said Amazon expected to keep expanding in Germany, including eventually delivering fresh groceries, too.

Amazon founder and chief executive Jeffrey P. Bezos owns The Washington Post.

— Reuters