1. Introduction We are pleased to offer this stylish and modern SEIKO AUTOMATIC Open Heart (Ref. 4R38-02A0). This timepiece is a celebration of mechanical watchmaking, featuring a captivating deep blue sunburst dial with an open heart aperture that reveals the beating balance wheel. Powered by the reliable Caliber 4R38, it combines high-quality Japanese engineering with an elegant, contemporary aesthetic. Estimated Production Year: Circa September 2018 (based on serial number and caliber). 2. Historical & Collector Value The Caliber 4R3x series is a core modern mechanical movement by Seiko, valued globally for its robust construction, hand-winding capability, and hacking (seconds stop) feature—qualities often associated with higher-end watches. This open-heart design appeals directly to enthusiasts who appreciate seeing the mechanical function of their timepiece. The watch's excellent finishing and dependable automatic movement make it a highly desirable and functional modern mechanical piece for any collection. 3. Specifications Brand: SEIKO Model: AUTOMATIC / Open Heart Reference Number: 4R38-02A0 Movement: Automatic (Cal. 4R38, 24 Jewels) Case Material: Stainless Steel Band Material: Stainless Steel Bracelet Case Size: Approx. 40 mm (Excluding crown) Accessories: Watch only (No original box or papers - Example) Features: Automatic and Hand-Winding, Hacking Seconds, Open Heart Dial Window, Display Caseback, 10 Bar Water Resistance. 4. Condition (based on image analysis) The overall impression of this timepiece is Good to Very Good. Dial & Crystal: The deep blue sunburst dial is clean and vibrant. The open heart window is clear, and the applied indices are sharp. The crystal appears clear with no major visible scratches. Case & Bezel: The stainless steel case retains its polished and brushed finishes. There are light surface scratches and scuffs consistent with regular wear, particularly on the polished bezel and case flanks. The overall geometry is solid. Caseback: The display caseback offers a clear view of the Caliber 4R38 movement. The steel outer ring shows light swirling, and the movement itself appears clean. Bracelet: The stainless steel bracelet shows light to moderate surface wear, including desk-diving marks and light scratches throughout the links and clasp. It is structurally sound and complements the watch's design. 5. Service History We prioritize reliability. This automatic watch has been fully inspected and confirmed to be operating perfectly. It is currently running, and all timekeeping functions are verified as operational. It is ready for immediate enjoyment. 6. Shipping & Customs Please be aware that international shipping fees and all associated customs duties and taxes are the sole responsibility of the winning bidder. We ensure secure, insured international shipping, but the buyer must manage and pay for all local import fees and processes upon arrival.