Management Number 0529 0516Y1359 A timepiece crafted by SEIKO, featuring a highly reliable Radio Wave Control quartz movement. It is equipped with the Caliber 5B21, offering atomic-clock precision and the worry-free maintenance characteristic of solar radio-controlled watches. This is a working piece, currently keeping accurate time. The clean, legible dial with bold indices creates a sporty yet intellectual feel, elevating the appearance at the cuff in business settings. Crafted from lightweight, durable titanium, it ensures exceptional comfort on the wrist for daily wear. A dependable timepiece that combines functional beauty and durability for long-term use. Item Details Brand: SEIKO Model Number: 5B21-0AB0 Movement: Radio Wave Control Quartz (Solar) Gender: Men's Working / Non-working: Working Serial Number: 490524 This item is pre-owned and may show signs of use such as scratches, wear, and age-related deterioration. Please refer to the photos for the condition. The watch is confirmed to be running at the time of listing; however, only a short and basic functionality check has been performed. Long-term accuracy and continuous operation have not been tested and are not guaranteed. For quartz watches, the battery level is unknown and replacement may be required after delivery. For mechanical watches, daily accuracy, internal condition, and service history are unknown. Water resistance is not guaranteed. Only the items shown in the photos are included. This item is sold as-is. Please bid with full understanding. We will ship via DHL or FEDEX to arrive within 5 days.