SEIKO Prospex Marinemaster SJE101

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This automatic diver’s watch delivers reliability, durability, and classic Seiko craftsmanship. Featuring the 6L37 movement, a slim stainless-steel case, and 200m diver’s water res istance, it offers a refined balance of performance and everyday wearability. LumiBrite visibility, a box-shaped sapphire crystal, and a secure three-fold clasp ensure this piece is ready for both land and sea. Case & Exterior SKU SJE101 Case Material Stainless steel Case Thickness 12.3 mm Case Diameter 39.5 mm Lug-to-Lug 47.2 mm Distance Between Lugs 20 mm Crystal Box shaped sapphire crystal Crystal Coating Anti-reflective coating on inner surface LumiBrite LumiBrite on hands, index(es) and bezel Clasp Three-fold clasp with secure lock, push button release with extender Water Resistance 200m / 660ft diver's Magnetic Resistance 4,800 A/m Weight 155.0 g Movement & Specifications Caliber Number 6L37 Movement Type Automatic with manual winding Precision +15 to -10 seconds per day Power Reserve Approx. 45 hours Jewels 26 Functions 28,800 vibrations per hour (8 beats per second)Stop second hand function Bezel Unidirectional rotating bezel Crown Screw-down crown Case Back See-through & Screw case back Show more