Deskripsi Seiko Prospex Alpinist SPB121J1 Automatic Made in Japan WR 200 M Seiko Prospex Alpinist Type: SPB121J1 Green Dial Movement Calibre number 6R35 Movement Type : Automatic with manual winding capacity Accuracy : +25 to -15 seconds per day Case material : Stainless steel Crystal : Sapphire with magnifier Crystal coating : Anti-reflective coating on inner surface Lumibrite on hands and indexs Band material : Calfskin Three-fold clasp with push button release Water Resistance : 20 bar Case size Thickness : 13.2 ㎜ Diameter: 39.5 ㎜ Length : 46.4 ㎜ Rotating compass inner ring Screw case back Screw-down crown See-through case back 24 jewels Date display Stop seconds hand function