* South Korea surprises with rate cut to record low 1.75 pct
* Spreadbetters see European bourses opening higher
* Asian shares move away from Wednesday's 7-week lows
* Euro sags as ECB stimulus drives down debt yields
By Lisa Twaronite and Hideyuki Sano
TOKYO, March 12 (Reuters) - A surprise interest rate cut by South Korea's central bank on Thursday helped lift an index of Asian stocks away from the previous session's seven-week trough, while the euro plumbed a new 12-year low as the European Central Bank's easing pressured euro zone bond yields.
Financial spreadbetters predicted some of Asia's lustre would rub off in Europe, with Britain's FTSE 100 seen opening 11 points higher, or up 0.2 percent; Germany's DAX expected to open 44 points higher, or up 0.4 percent; and France's CAC 40 seen opening 7 points higher, or up 0.1 percent.
"Despite a marginally weaker U.S. session, European traders are shrugging it off and instead focusing on the bullish session in Asia," Jonathan Sudaria, a dealer at Capital Spreads, said in a note.
The Bank of Korea's monetary policy committee cut its base rate by 25 basis points to a record low of 1.75 percent, its first cut in five months. It joined its counterparts in other countries which have recently taken advantage of lower inflation to ease monetary policy to spur sluggish growth.
The Bank of Thailand cut its policy interest rate on Wednesday, also a surprise step, and India has cut rates twice this year. China has eased policy twice, with more moves expected, while Singapore, Australia and Indonesia have also eased.
MSCI's broadest index of Asia-Pacific shares outside Japan extended gains and was up 0.7 percent, moving away from Wednesday's seven-week lows.
The Korea Composite Stock Price Index (KOSPI) initially rose, but then fell 0.5 percent. A snap poll conducted by Reuters soon after the decision showed most analysts do not see another rate cut this year.
Japan's Nikkei ended up 1.4 percent at a 15-year closing high, as traders positioned for Friday's settlement for Nikkei futures and options contracts expiring in March.
"Foreign derivatives investors are seen chasing the market higher," said Norihiro Fujito, senior investment strategist at Mitsubishi UFJ Morgan Stanley Securities, who said investors with long positions in Nikkei futures would like to see futures settle at a higher price.
The euro touched a fresh 12-year low of $1.0494 on Wednesday and was last at $1.0537, down about 0.1 percent on the day after the European Central Bank started to implement its 1 trillion euro bond-buying programme this week.
The common currency has fallen about 4.8 percent in the past five sessions - a pace of decline not seen even during the European debt crisis of 2011-12.
By contrast, surprisingly strong U.S. employment data published last Friday fuelled expectations that the Federal Reserve may raise interest rates as soon as June, though some investors and analysts fear the economy is not yet ready for even marginally higher borrowing costs.
The monetary policy divergence prompted many market players to shift funds to higher-yielding U.S. dollar from euro.
The dollar index , which tracks the U.S. currency against a basket of six major rivals, hit a high of 100.06 on Thursday, breaking the 100.000 figure for the first time since April 2003. It was last down about 0.1 percent at 99.672.
The dollar edged down about 0.1 percent against the yen to 121.29 but remained not far from a nearly eight-year high of 122.04 yen hit on Tuesday.
The dollar's strength undermined U.S. shares on Wednesday, on concerns it would erode multinational companies' earnings. The S&P 500 Index fell 0.2 percent to a one-month low overnight.
Another downside of the dollar's strength and the spectre of higher U.S. rates is that they risk unsettling the many emerging markets that have benefited from investors seeking higher yielding investments.
Currencies such as the Turkish lira and the South African rand have fallen almost as much as the euro so far this month. The Brazilian real fell about twice as much as the euro.
"We should take note of the risk that emerging currencies could fall further. ... Some emerging countries are running current account deficits and their currencies falling would be negative for risk asset markets," Makoto Noji, senior strategist at SMBC Nikko said in report.
U.S. crude prices rebounded after skidding to a one-month low overnight after government data showed a U.S. oil inventory build last week, contrary to some expectations for a drawdown. It last stood at $48.42 a barrel, up about 0.5 percent on the day.
The European benchmark Brent also touched a one-month low overnight, though it bounced back later on Wednesday and added 2 percent. It was extending that rally in Asia, up about 1.1 percent at $58.18 a barrel. (Additional reporting by Ayai Tomisawa in Tokyo; Editing by Kim Coghill and Jacqueline Wong)