Na Hoku Stainless Steel Mid-Size Moonphase Watch with Brown Dial and Koa Wood Inlay. Swiss movement, genuine sapphire crystal with anti-glare treatment, screw down diver crown, stainless steel case, luminous dial and hands, multi-function with day/date/moonphase, water tested to 20 atmospheres, (660 feet) with a 3 Year Warranty. Our Na Hoku Mid-Size Moonphase Watch with Koa Wood Inlay measures 8.75" in internal circumference The bracelet features five links that can be removed to adjust if a smaller fit is desired. The links measure approximately 11mm each and are positioned five on one-side and five on the other side of the deployant bracelet clasp. The band measures approximately 17.75mm in width, and the watch face measures approximately 35mm in width (not including crown).