Seiko Prospex Save The Ocean Manta Ray SS 43.8 MM Automatic Watch SRPE33K1 Grand Seiko and roughly twice the surface

and roughly twice the surface hardness of conventional titanium

Case size (L× W× H): 51

Water Resistance: 5 bar

The metal band has been dimple processed

Caliber Number

Seiko Prospex Save The Ocean Manta Ray SS 43.8 MM Automatic Watch SRPE33K1 Grand Seiko and roughly twice the surfaceMovement Caliber Number: 4R35 Movement Type: Automatic with manual winding capacity Duration: Approx. 41 hours Exterior Case Material: Stainless steel Crystal: Sapphire crystal Crystal Coating: Anti reflective coating on inner surface LumiBrite: Lumibrite on hands, indexes and bezel Clasp: Three fold clasp with secure lock , push button release with extender Water Resistance: 200m 660ft diver's Case Size Thickness: 12. 8 Diameter: 43. 8 Length: 48. 7