Introduction This Seiko automatic wristwatch, Ref. 4R38-00S0, features a modern open-heart dial that showcases the movement in action. Combining contemporary Japanese design with reliable mechanical engineering, this model offers both visual appeal and everyday usability. Historical & Collector Value The Seiko Caliber 4R38 is part of Seiko’s well-regarded modern automatic movement family, known for durability, ease of maintenance, and stable performance. Open-heart designs have become increasingly popular among collectors who appreciate visible mechanics without sacrificing practicality. This reference represents Seiko’s modern interpretation of mechanical watchmaking, making it an attractive entry point for both new and seasoned collectors. Specifications • Brand: Seiko • Reference: 4R38-00S0 • Movement: Automatic (Seiko Cal. 4R38) • Jewels: 24 • Case Material: Stainless steel • Bracelet Material: Stainless steel (original) • Dial: Black open-heart dial • Case Back: Exhibition (see-through) • Functions: Hours, minutes, seconds • Case Diameter: approx. 40.0 mm (excluding crown) • Made in: Japan Condition • Overall condition: VG (Very Good) • Case shows light surface scratches consistent with normal use • Crystal is clean with no major damage observed • Dial and hands are well preserved • Bracelet shows light wear; clasp operates correctly Please refer to all photographs, as they are an important part of the condition description. Service History • Watch is currently running • Automatic winding functions normally • Service history is unknown • Timekeeping accuracy has not been tested over extended periods Shipping & Customs The watch will be carefully packed and shipped with tracking. All customs duties, VAT, and import taxes are the responsibility of the buyer.