Preheat oven to 400°. In large bowl, cream together margarine and sugars. Add water, lemon juice and eggs. Blend well. (Mixture will look curdled.) Add flour, soda, cinnamon and oatmeal; mix well. Drop by rounded teaspoonfuls about 2 inches apart onto ungreased cookie sheets. With spoon, make a small well in each cookie; fill with preserves. Drop small piece of dough over preserves, but do not cover. Bake for 8 to 10 minutes, or until light golden brown. Immediately remove cookies to wire racks to cool. Yield: 4 1/2 dozen.