Prospex

From 2017 to 2020, this 44.3 mm steel diver carries a black or dark grey dial and 200 m water resistance, elevated by Seiko's high-grade 8L35 automatic with hand-winding, a 50-hour reserve, and a 28,800 vph beat. The 8L35 is a significant step up from the brand's 4R and 6R calibers, placing this…

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