* Vice-governors Singer, Hampl top candidates for successor
* Crown dips 0.3 percent, then recovers
* Market calm, sees policy continuity
* For INSTANT VIEW, click on [
](Adds analysts, background, updates crown)
By Jan Lopatka
PRAGUE, April 15 (Reuters) - Czech central bank Governor Zdenek Tuma announced on Thursday he is leaving his post early to reduce a lengthy period of speculation about his successor.
Two Czech central bank vice-governors were seen as the top candidates to replace him.
Tuma's, who said he would step down on June 30 even though his term only ends in February, took the reins in 2000 and won high respect in the market for steering Czech monetary policy toward a long period of low inflation and the lowest interest rates in the region.
Tuma, at a news conference, said he made no recomendations to President Vaclav Klaus on who should be his successor, and Klaus, in a statement, did not comment on who he might pick.
The two top contenders are both more euro sceptic than the mostly neutral Tuma, although they both respect the matter to be one for politicians rather than the bank. Analysts do not expect major impact on interest rate policy.
"It is quite natural that a tendency is growing to evaluate steps and comments by central bank board members from the point of view of this change (of governor in February)," Tuma said in a statement.
"I realise, also in light of a similar experience from six years ago, that it will be the better for the Czech National Bank if the period of uncertainty connected with the reconstruction of the board will be as short as possible."
The crown, which scaled seven-month peaks this week, dipped 0.3 percent against the euro <EURCZK=> after the announcement, hitting a session low of 25.135 to the euro before rebounding back to earlier levels of 25.08.
Tuma, 49, said he also wanted to separate the expiration of the governor's mandate from the expiry of the terms of three other members of the seven-strong board.
His resignation follows the tragic death of Polish central bank chief Slawomir Skrzypek last week and the resignation of Serbian Governor Radovan Jelasic last month.
VICE-GOVERNORS IN SPOTLIGHT
The resignation will come shortly after the parliamentary election on May 28-29, but that should not have an impact on the succession process.
Analysts see two vice-governors, Miroslav Singer or Mojmir Hampl, as Tuma's most likely successor.
Both have consistently questioned benefits of the single currency for a small economy catching up with the richer west.
"If the president wants to support continuity then it should be one of the vice-governors. ... Singer has been longer in the board, but Hampl became more visible over the past two years and has commented in critical articles on the IMF which has likely resonated with President Klaus," said Vojtech Benda, senior economist at ING in Prague.
"I don't think the choice will change the market's view very much. ... The real earthquake will be next year when three people are replaced on the board. That's the bigger uncertainty."
Responsibility for choosing the central bank chief, for a six-year term, lies solely with the euro sceptic Klaus.
He can pick anybody he wants, but there has been consensus in the market he would likely opt for one of the governors.
Singer, 41, has been in favour of more flexibility in moving interest rates. He, along with board member Vladimir Tomsik, voted for a rate cut last month, against a majority of the board that endorsed flat rates at 1 percent.
Hampl, 35, sharply criticised the International Monetary Fund in a newspaper interview earlier this month, saying the fund helped worsen the economic crisis in central and eastern Europe last year to boost its clout as a rescuer. [
]Hampl voted for stable rates last month, along with Tuma and the board majority. He has warned that a drop in economic capacity during the economic crisis may shrink the Czech potential output and thus lead to a need for higher rates. (Additional reporting by Jana Mlcochova and Jason Hovet; Editing by Susan Fenton and Neil Stempleman)