SEIKO-Prospex SPEEDTIMER SPB515 Murph the dial is crafted from

the dial is crafted from white mother-of-pearl

weighing 1/2 ctw

synthetic blue spinel cabochon crown at the 12 o’clock position

Screw-down case back

features blue-gray subdials and an orange chronograph hand inspired by the colors of the original model

SEIKO-Prospex SPEEDTIMER SPB515 Murph the dial is crafted fromMovement Caliber Number 6R55 Movement Type Automatic with manual winding Precision +25 to 15 seconds per day Power reserve Approx. 72 hours(3 days) Jewels 24 Functions Stop second hand function Case Band Case Material Stainless steel (super hard coating) Case Size Thickness: 12. 0mm Diameter: 39. 5mm Lug to lug: 44. 5mm Crystal Curved sapphire crystal Crystal Coating Anti reflective coating on inner surface LumiBrite LumiBrite on hands and index(es)