Tokyo - The euro slipped on Tuesday with investors adjusting positions as they waited for new developments in Greek debt talks.
The common European currency fell to $1.1273 and ¥139.48 in Tokyo from $1.1340 and ¥139.92 in New York late on Monday.
The dollar rose to ¥123.72 from ¥123.38 in US trade.
The euro was underpinned by optimism that Greece would secure a bailout deal with its official creditors.
Nonetheless the prospect that the European Central Bank will continue to stick to its massive easing programme highlights its policy divergence with the US central bank, which is moving towards an interest rate hike.
Tokyo's benchmark Nikkei index was up 1.40% in mid-afternoon trade, reaching its highest intraday level in more than 15 years.
Greece offered economic reforms in exchange for the last payment of €7.2bn from the current aid programme.
Without that money, Greece may not be able to make a €1.5bn repayment to the IMF due on June 30, risking a default and possible chaotic exit from the eurozone.
After an emergency summit in Brussels, eurozone leaders ordered their finance ministers to hold fresh talks on Wednesday to thrash out the details ahead of a full meeting of all 28 European Union leaders on Thursday.
"The next focal point will be on Thursday, but that won't stop the stream of headlines, and the subsequent market twists and turns as it tries to make sense of it all," Emma Lawson, senior currency strategist at National Australia Bank, said in a note.
The dollar was largely higher against other Asia-Pacific currencies.
It rose to 1 105.13 South Korean won from 1,098.70 won on Monday, to 63.63 Indian rupees from 63.46 rupees, and to 45.14 Philippine pesos from 45.00 pesos.
The dollar also firmed to 33.75 Thai baht from 33.63 baht, to Sg$1.3393 from Sg$1.3306 and to Tw$30.83 from Tw$30.72.
The greenback fell to 13 256 Indonesian rupiah from 13 302 rupiah.
The Australian dollar dropped to 77.06 US cents from 77.84c, while the Chinese yuan edged up to ¥19.90 from ¥19.76.