Datum Inc.: The Anaheim firm said Wednesday...

Datum Inc.: The Anaheim firm said Wednesday that it has won a second order from Seiko Communications for receivers, bringing the contract total to $300,000. Seiko uses the receivers in systems that transmit information to its Message Watches, which are a combination of a digital watch and a pager. Louis B. Horwitz, president of Datum, said the Anaheim-based company expects more orders from Seiko as it expands its communications network across the nation.