Bring a medium saucepan of water to a boil. Add chicken; cook at a bare simmer until it is cooked through, about 15 minutes. Transfer to a plate, and cut into 1/2-inch cubes; set aside.
Place eggs in a small saucepan; fill with enough cold water to cover by 1 inch. Bring to a boil over medium-high heat; turn off heat. Cover; let stand 11 to 12 minutes. Transfer to a small bowl, and cover with cold water; let cool, and peel. Slice eggs in half lengthwise. Discard one yolk, and pass the other through a fine sieve into a small bowl; set aside. Slice each egg white into six wedges; set aside.
Cook bacon in a medium saute pan over medium-low heat until browned and fat is rendered, turning once, about 3 minutes per side. Transfer to drain on paper towels. Let cool; roughly chop.
Spread lettuce on a serving platter. Arrange chicken, eggs, bacon, watercress, tomatoes, avocado, parsley, and chives in separate rows.
Make the vinaigrette: In a small bowl, whisk together cheese, vinegar, and mustard. Slowly whisk in the oil. Season with pepper. Drizzle vinaigrette over salad, and serve immediately.
THIS WILL BE ON MY CHRISTMAS DINNER TABLE, LOOK AT ALL THE BEAUTIFUL COLORS, I NEED ADD ORANGE (PIE) ON MY TABLE