Seiko Prospex SPB321 Sumo Ceramic Bezel Blue Dial LX Spring Drive Glass: Flat sapphire crystal with

Glass: Flat sapphire crystal with anti-reflection coating on one side

6mm/perceived 8

Brand: Ball

resembles the shape of a turtle

making for a sophisticated presence

Seiko Prospex SPB321 Sumo Ceramic Bezel Blue Dial LX Spring Drive Glass: Flat sapphire crystal withCaliber Number 6R35 Movement Type Automatic with manual winding Accuracy +25 to 15 seconds per day Duration Approx. 70 hours Jewels 24 Functions Stop seconds hand function Date display Case Band Case Material Stainless steel (super hard coating) Case Size Thickness: 13. 4mm Diameter: 45. 0mm Lug to lug: 52. 6mm Crystal Sapphire crystal Crystal Coating Anti reflective coating on inner surface LumiBrite LumiBrite on hands, index(es) and bezel Clasp