Watertown (Mass.) Contributory Retirement System issued an RFP for an investment consulting firm, according to the $83 million pension plan's website. The plan's current consultant is Wainwright Investment Counsel. Barbara Sheehan, director of the retirement system, could not be reached for further details. The RFP can be requested by contacting the retirement board at 617-972-6456. Proposals are due Nov. 17.