Seiko Prospex x Automatic ft. Alpinist aka GMT Men Formal Round 200m Water Resistant Watch HBC007J1 HBC007 HBC-007 HBC-007J1 Discover the Seiko Prospex HBC007, the iconic green Alpinist GMT now available globally. This 39.5mm stainless steel timepiece features a deep green dial with gold-tone cathedral hands, a rotating compass inner ring, and a dark brown leather strap. A permanent addition to the Prospex collection, blending heritage tool-watch design with modern mechanical performance. Caliber Number / Movement 6R54 (automatic with manual winding capacity) Power Reserve / Accuracy Approximately 72 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 (super hard coating) case with leather (calfskin) band (three-fold clasp with push-button release) Water Resistance 200m / 20 bar Case Size Thickness: 13.6 mm Diameter: 39.5 mm Length: 46.4 mm Lug width: 20.0 mm Other Specifications Seiko Prospex x Automatic ft. Alpinist aka GMT Made in Japan Magnetic resistance (4,800 A/m) Rotating compass inner ring See-through case back Screw-down crown Screw case back 24 jewels Date and 24-hour (GMT dual time) display Stop second hand function (hacking mechanism) Regular timekeeping (analog display)