Seiko Prospex SPB257 Willard Black Series Limited Edition Alpina Part of the Black Series

Part of the Black Series

Digital compass: Measurement range: 0° to 359° 16-direction display

Height of 12

black DLC coated case with black genuine rubber strap

Calendar-linked time difference adjustment function

Seiko Prospex SPB257 Willard Black Series Limited Edition Alpina Part of the Black SeriesCaliber Number 6R35 Movement Type Automatic with manual winding Accuracy +25 to 15 seconds per day Duration Approx. 70 hours Exterior Case Material Stainless steel (hard coating) Crystal Curved sapphire crystal Crystal Coating Anti reflective coating on inner surface LumiBrite LumiBrite on hands, index(es) and bezel Band Material Polyester Other Details Water Resistance 200m 660ft diver's Case Size Thickness: 13. 2 Diameter: 42. 7 Length: 41. 6 Weight