SJ Production .GM Log Lightning Blue Dial, Black Dial, White Dial, Digital Dial .Produced by GM Factory, Rolex, the Sky King MK1, featuring the Magnetic MILGAUSS series with a three-in-one design, equipped with NFC sensing! Quality guaranteed! The 116400 Lightning Hand, with green glass, is the highest version in 904L steel, available in blue, green, white, and black dials! Anti-magnetic double case back! Synchronizing green material sapphire crystal, custom new solid pin shaft 3131 integrated movement. Size: 40mm, made from oyster steel forged from 904L steel, a type of super alloy widely used in high-tech, aerospace, and chemical industries, ensuring high corrosion resistance. Oyster steel is not only extremely durable but also easy to polish, maintaining its beauty even in the most extreme environments. The electric blue dial and green sapphire crystal mirror are paired with the striking electric blue dial, complemented by the iconic lightning-shaped second hand. The Rolex Milgauss A tribute to science! Recognize the watch with code 6R9999V6 three-in-one, comes with an NFC sensing card, a replica of the original, produced by GM Factory, making it the best luxurious gift recommendation. Please trust GM Factory for exclusive quality. S1 exquisite recommendation for men's mechanical watches.