Brand: Citizen Case Diameter: Approximately 35mm (excluding the crown) Lug Width: 18mm Wrist Size: Standard men's leather strap Movement: Quartz Specifications: 3 hands, day-date, screw-down crown Case Material: Stainless steel Strap: Leather, crocodile pattern, aftermarket strap Water Resistance: Unknown due to vintage nature Dial Color: Silver Strap & Case Color: Turquoise blue Accessories: None Condition: Vintage, working This is an old Citizen quartz watch, likely manufactured in 1979 based on the back number. The crown can be pulled out one step and turned inward to change the day of the week, turned outward to change the date, and pulled out two steps to set the time. Although it's a vintage piece, the quartz movement ensures good accuracy. The current water resistance is unknown. There are small scratches across the entire surface of the crystal. The scratches are noticeable depending on the light, but they do not affect normal use. It is currently running. The previous owner replaced the battery in September 2025. The strap also shows some signs of wear. There are no cracks or tears. Please refrain from purchasing if you are overly concerned about condition. Please consider this a used item. Citizen Crystron Old Quartz 70s, working, 1979, crocodile pattern Turquoise blue, emerald Silver Wave, Casio Trontron, Seiko Crystal Seven, Dandy Seven, CRYSTRON