Window > Swatch Libraries > PANTONE Metallic Coated. Look for 877.
If it's not there, just make a new swatch, set the Color Type to 'Spot', and approximate the color you're looking for. Adobe's CMYK approximation is C: 38.43, M: 27.45, Y: 26.27, K: 9.02, but obviously it's impossible to match metallics precisely on screen.