🇯🇵Japan-made SEIKO 5 Sports SKX Sports Style SBSA001 Japanese Version JDM 5Sports SEIKO Watch Seiko Men's Watch SEIKO watch SEIKO SPORT 5 Birthday Gift Anniversary Gift Valentine's Day Gift Christmas Gift Birthday gift Christmas present Valentine's day present

Caliber No. 4R36 Movement Mechanical automatic winding (with manual winding) Accuracy +45 to -35 seconds per day Power Reserve Approximately 41 hours at full winding Case Material Stainless steel Case Back: Stainless steel / Hardlex Glass Material Hardlex Lumi-Brite yes (hands/index) Clasp One-push two-lock three-fold system Water Resistant 10 ATM water resistance Case Size Thickness: 13.4mm Horizontal: 42.5mm Vertical: 46.0mm Origin Japan Other Specifications Transparent case back Screw case back