Sanwa Bank California plans to enter the 401(k) business via its  fledgling proprietary Eureka fund family. 
Sanwa, an $8.1 billion-asset subsidiary of Osaka, Japan-based Sanwa Bank  Ltd., opened its retail proprietary fund group last month, after the   conversion of its common trust funds. Assets in the mutual funds now total   about $650 million.     
  
In a board meeting last week Sanwa approved a plan to begin packaging  the Eureka Funds in 401(k) plans aimed at its middle-market corporate   customers, said Richard A. Weiss, chief investment officer and a Sanwa   senior vice president.     
This summer Sanwa will start targeting companies that already bank with  it, focusing on those with 50 to 250 employees, Mr. Weiss said. The board   of directors has approved the hiring of seven salespeople dedicated to that   market, he said. The program would be administered by a third party, he   added.       
  
Sanwa is already using the Eureka Funds as part of an asset allocation  account, which was unveiled last month. The account, which Sanwa is rather   boldly touting as the investment management account "for the masses,"   requires a minimum investment of $25,000 and charges an annual management   fee of 1% to 1.5%.       
The asset allocation account uses Sanwa's five Eureka Funds along with  11 funds from New York-based Dreyfus Corp. 
The bank is also exploring farming out the asset allocation product to  some of its 200 correspondent banks, Mr. Weiss said. Many of them are   community banks that could not offer a similar product unassisted, he said.   
  
Sanwa is talking to a number of its correspondents, but Mr. Weiss said  negotiations are too preliminary to identify them. 
Geoffrey H. Bobroff, a mutual fund consultant in East Greenwich, R.I.,  questioned the need for a mass-market account such as Sanwa's. 
Peoples looking to invest $25,000 would probably be better off just  buying one mutual fund, rather than being given a choice, Mr. Bobroff said. 
"By and large, $50,000 is still too small to try and design a portfolio.  I think the breaking point is probably about $100,000," he said. 
  
However, Mr. Weiss said the bank opened 13 of the new accounts for  existing customers during the first two weeks. New retail sales are $4   million so far, he said.   
Mr. Weiss said Sanwa aims to keep its customers from taking their  investable assets to Charles Schwab & Co. or Merrill Lynch & Co.-though he   noted that at Merrill $25,000 might not get customers through the door.   
"For years banks have been robbed of deposits in mutual funds," Mr.  Weiss said. "They're in the banks first; they're the bank's to lose," he   added.   
The asset allocation product and the 401(k) business should help the  Eureka Funds reach $700 million of assets by yearend and $1 billion by   2000, Mr. Weiss said.