Seiko Alpinist Automatic Watch pairs a rugged stainless-steel build with an automatic 6R35 movement and 20 bar water resistance. It’s designed for reliable everyday wear and outdoor navigation with an inner rotating compass ring. Key attributes: Black | Stainless steel | Stainless steel | Water resistant to 20 bar (200 m) | Sapphire crystal | 70-hour power reserve | Automatic movement (Caliber 6R35) | Rotating compass inner ring | Screw-down crown | Three-fold clasp with push-button release | See-through case back | Black dial with Lumibrite hands and indexes | Inner rotating compass ring | Distinctive Alpinist-style hands | Dimensions & fit: Case diameter: 39.00 mm | Composition & care: Stainless steel | Sapphire crystal