Chapter Ring Inner Watch Bezel 31.5MM 28MM Modified Scale Ring Inner Bezel Watch. l Size (Optional): 18MM, 20MM, 22MM. Magnesium-Aluminum Digital Watch Bezel GMT2-22 for 40mm SUB Watch Case. l Color (Optional): Black+Green, Black+Orange, Black+Red, Black+Yellow, Black+Dark Gray, Black+Midnight Blue, Black Trim+Starburst, Light Pink Trim+White, Light Gray Trim+White, Dark Blue Trim+Light Blue, Dark Purple Trim+Light Purple.