UPDATE 1-National Bank of Canada to do efficiency review

(Adds details)

TORONTO, Sept 15 (Reuters) - National Bank of Canada (NA.TO) is reviewing how to make its operations more efficient and plans to open a money-management unit targeting wealthy clients, it said on Monday.

Without detailing the costs of the moves, the bank said that job losses due to "natural attrition," retirements and reassignments will be offset by newly created positions.

It said it will add positions across its branches and fast-track its technology investment program.

National Bank said its wealth-management arm will undergo "an in-depth review" and see the creation of a unit for high net worth clients, as well as a regrouping of marketing and investment development.

National Bank shares were up 11 Canadian cents at C$53.53 on the Toronto Stock Exchange on Monday afternoon.

($1=$1.07 Canadian) (Reporting by Wojtek Dabrowski; editing by Peter Galloway)