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45mm stainless steel case with unidirectional bezel and sapphire crystal
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Seiko Caliber 6R35 automatic movement with 70-hour power reserve
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Dark green dial with LumiBrite hands and indexes and 200m diver’s water resistance
The Seiko Prospex SPB103J1 is a professional-grade automatic diver designed for high performance and reliability underwater. Its 45mm stainless steel case delivers a bold presence, complemented by a unidirectional rotating bezel and a rich dark green dial that adds refined character while maintaining a purposeful design. LumiBrite-treated hands and indexes ensure excellent legibility in low-light and diving conditions. Powered by the Seiko Caliber 6R35 automatic movement, the watch offers an extended 70-hour power reserve along with dependable daily accuracy. A screw-down crown and screw case back enhance protection against water ingress, while the sapphire crystal provides superior scratch resistance. Finished with a stainless steel bracelet and secure safety folding clasp, this model embodies the robust spirit of the Prospex Diver’s collection.
3 Year Seiko International Warranty | Delivered in Original Packaging | Fast & Secure Shipping