[Key Highlights] NEW CAPACITOR INSTALLED: Battery replaced in March 2024. Long-term reliability guaranteed. ULTRASONIC CLEANED: Case and bracelet have been professionally deep-cleaned. Hygienic and ready to wear. RARE LARGE SIZE: Fits wrists up to 18.5cm (approx. 7.3 inches). AUTO RELAY FUNCTION: Fully operational. Watch "wakes up" and sets itself to the current time when shaken. [Item Specifics] Brand: SEIKO Model: Kinetic Auto Relay Reference: 5J21-0A50 Serial Number: 9D5467 (Manufactured in December 1999) Movement: Kinetic (Automatic Power Generating Quartz) Bezel Diameter: 35mm Band Width: 16.5mm Wrist Size: Up to 18.5cm (7.3 inches) Water Resistance: 10 Bar (Original rating, not pressure tested) [Condition Report] Movement: Running perfectly. We have installed a brand-new capacitor (3023-24X). The Auto Relay function (power-save and automatic time recovery) works exactly as intended. Bracelet (Band): There are visible scratches on the bracelet surface due to normal wear over the years. Please refer to the photos for details. Exterior Cleaning: Despite the scratches, the watch has undergone professional Ultrasonic Cleaning. All skin oils and dust from the bracelet links and case crevices have been removed. It is very clean and comfortable to wear. Glass/Crystal: Clear with no significant scratches. Bezel/Case: Minor hairline scratches consistent with use, but no major dents or deep gouges.