Quartz, running. Includes an aftermarket black rubber strap (20mm wide, new rubber band). [Slightly Problematic Points] Although it's less likely to be used daily than a quartz watch, the crown and stem may easily detach if the crown is turned counterclockwise. Please understand the following: ① Shipping (domestic only) will be on weekends. ② Packaging will be folded compactly. ③ Please check the condition of the exterior from the photos. ④ Please refrain from purchasing if you are overly concerned about used items. ⑤ Accessories are only those in the photos. ⑥ First-come, first-served basis even if there are reserved sales or comments. ※ Immediate purchase is OK.