The battery is low due to the test battery. Therefore, the second hand is moving erratically, but this is not a defect. It will work normally after replacing the battery. It is currently working, but the battery is low, so it may not be working when it arrives. ●CASIO～EDIFICE ●Brand new ●Quartz movement ●Chronograph ●Date calendar ●100m (10 atm) water resistance ●Stainless steel ●Body size: Approximately 45mm in diameter x 13mm in thickness (excluding the crown and bezel) ●Lug width: 22mm ●Weight: Approximately 160g ●1-year warranty Manufacturer's original box. English instruction manual. The Japanese instruction manual can be easily viewed on the manufacturer's website. Description Movement: Japanese quartz 10 atm water resistance Diameter: Approximately 45mm (excluding lugs and crown) Thickness: Approximately 13mm Lug width: 22mm Belt width: 22mm Weight: Approximately 160g Stainless steel (case) Stainless steel (belt) Date calendar Chronograph Accuracy: Average monthly difference ±20 seconds Battery life: Approximately 3 years Battery: SR920SW This is not a radio-controlled watch. Accessories: CASIO original box Instruction manual (not in Japanese)