The euro held near a seven-week low on Friday on the back of dovish comments from the European Central Bank, while a jump in US bond yields underpinned the dollar and kept Asian stocks in check.
Many investors hugged the sidelines, however, ahead of US jobs data that should cement the case for the Federal Reserve to begin scaling back its stimulus later this month.
MSCI's broadest index of Asia-Pacific shares outside Japan dipped 0.1% after six days of gains - its longest winning streak since December. It was on track to end the week up more than 2%.
Tokyo's benchmark Nikkei shed 1.1% as investors locked in profit after a sharp rally in real estate and construction firms on hopes the city will win its 2020 Olympic Games bid this weekend. The index was still up 3.9% this week, however.
The euro wallowed at $1.3130, having slid a full US cent to be 0.7% lower on the week. Against the yen, it was at 130.95.
Investors sold the common currency after the ECB said it stood ready to act if needed to bring money market rates down and help nurture a "very, very green" recovery.
ECB President Mario Draghi made those comments as global government bond yields have risen sharply, tracking US Treasuries in expectations for the Fed to start withdrawing support.
Indeed, US 10-year note yields hit 3% on Thursday for the first time since July 2011, having jumped from near 1.6% in four short months and providing a major support for the dollar in the process.
The greenback popped back above 100 yen to return to levels not seen since late July. Coupled with a weaker euro, the dollar index, measured against a basket of major currencies, scaled a seven-week peak.
Latest US data showed a solid expansion in the services sector, while private employers added 176,000 jobs in August, suggesting that non-farm payrolls could be surprisingly strong.
"The combination of a strong non-farm payrolls with this week's stunning US ISMs ahead of the first Fed taper could send the dollar index towards 85," Societe Generale wrote in a note.
Some analysts said payrolls in line with expectations of 180,000 new jobs would likely be enough for the Fed to start tapering its $85 billion a month stimulus at the Sept 17-18 meeting. The data is due at 1230 GMT.
TURKEY VS INDIA
Worries about reduced central bank support have weighed on demand for gold and riskier assets, with emerging markets in the firing line.
Indonesia has had to raise interest rates to support the collapsing rupiah currency, while India's new central bank boss this week impressed some with an unexpectedly detailed and wide-ranging plan that saw the rupee and stocks rally on Thursday.
"The Indian rupee can continue to stabilise following recent measures aimed at encouraging US dollar inflows," Morgan Stanley wrote in a note.
"While both the Indian rupee and Turkish lira are vulnerable to possible oil price spikes related to Syria intervention risks, Turkey is likely to command more of a risk premium due to its proximity and potential involvement."
Morgan Stanley recommended investors to short the Turkish lira versus the Indian rupee.
The top five emerging market powers: Brazil, Russia, India, China and South Africa (BRICS) have also pledged to set up a $100 billion fund to stabilise currency markets.
But it looked unlikely to be in place soon enough to temper the effects of an expected pullback of Fed stimulus.
The Group of 20 emerging and developed powers gathered in St. Petersburg for a summit struggled to find common ground over the turmoil faced by emerging markets.
Leaders at the summit also had to contend with the tough question of whether to support US military strikes in Syria.