[New Battery / Operational / Wristwatch] Functionality confirmed (including crown operation). Currently running; ready for immediate use. ◆ Product Information [Brand] SEIKO [Series] EXCELINE [Model Number] 2320-6440 [Material] SGP + PDP / Stainless steel case back [Dial] White [Movement] Quartz [Functions] 2-hand display [Case Size] Approx. 21.2mm (excluding crown) [Weight] Approx. 14.1g [Lug Width] Approx. 1.4cm [Wrist Size / Max] Approx. 16.5cm (including extra links) [Accessories] None *Any included accessories are shown in the photos. ◆ Additional Information This is a model from SEIKO's dress watch line, "EXCELINE" (Model No. 2320-6440). Based on the serial number "180425" on the case back, it is a vintage model believed to have been manufactured in August 1981. It features a classic, striking design with slender Roman numerals encircling the white dial. The watch is characterized by a refined face combining a polygonal tonneau-shaped case with black hands and Roman numeral indices. With the "Exceline" logo in script on the dial and a black cabochon set in the crown, this timepiece embodies the elegant aesthetic typical of the Exceline line from the early 1980s.