Seiko Prospex x Automatic ft. Baby Alpinist Men Formal Round 200m Water Resistant Watch SPB155J1 SPB155 SPB-155 SPB-155J1 Discover the Seiko SPB155J1, affectionately known as the Baby Alpinist for its compact 38mm size and mountaineering heritage inspired by Seiko 1959 Alpinist. This refined field watch features a stunning sunburst dial, 200m water resistance, and the reliable 6R35 movement - blending vintage charm with modern performance. Perfect for collectors and outdoor enthusiasts seeking a versatile, heritage-rich timepiece. Caliber Number / Movement 6R35 (automatic with manual winding capacity) Power Reserve / Accuracy Approximately 70 hours (+25 to -15 seconds per day) Crystal Sapphire crystal (curved, anti-reflective coating) Luminous LumiBrite on hands and indexes Case / Band Material Stainless steel case with stainless steel band (three-fold clasp with push-button release) Water Resistance 200m / 20 bar Case Size Thickness: 12.9 mm Diameter: 38.0 mm Length: 46.0 mm Lug width: 20.0 mm Other Specifications Seiko Prospex x Automatic ft. Baby Alpinist Made in Japan See-through case back Screw-down crown Screw case back 24 jewels Date display Stop second hand function (hacking mechanism) Regular timekeeping (analog display)
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