Seiko Prospex SPB121J Alpinist watch is a handsome gents watch, that is practical and classic design. Apart of the Alpinist collection that launched back in 1959, it was first designed for Japanese ‘Yama-otoko’ mountain men. Constructed to be reliable with durability in treacherous terrains, now with 70 hours power reserve to survive the long hours spend outdoors. This a beautiful timepiece that can be styled up or down and worn outdoors especially with its 200 meters water resistance. - Automatic Movement (Powered by the movement of the wearer) - Calibre 6R35- Stainless Steel Case - Brown Leather Band - 39.5mm Case Size - 13.2mm Thickness - 87g Weight- Accuracy: 25 -15 seconds a DAY (at normal temperature range (5°C and 35°C)- 70 Hours Power Reserve - Compass - Hand Winding Capability - Exhibition Case Back - Sapphire Glass - Rotating Bezel Inner Ring- Screw Down Crown - 200 Meters Water Resistance