Keith Jecks was named senior investment consultant at Watson Wyatt Worldwide, effective April 1, confirmed spokesman Paul Deane-Williams. His post is new. Mr. Jecks will report to Paul Trickett, European head of investment consulting. Mr. Jecks was global head of the pensions advisory group at ABN AMRO Bank based in London. Neither he nor ABN AMRO spokeswoman Joanna Pope could be reached by press time for information on a replacement.