(SHIPPING FROM SWEDEN, NO TAXES IN EUROPE) Seiko Lord Marvel – 15023E (Silver Dial / 14K Gold Filled) – 1963 For sale is a beautiful and historically significant vintage dress watch: the Seiko Lord Marvel (Reference 15023E). Produced before the introduction of Seiko's high-beat (36,000 bph) movements, this "low beat" manual-wind model represents the absolute pinnacle of Seikosha’s luxury watchmaking in the early 1960s, predating the widespread dominance of the Grand Seiko line. Technical Specifications: - Model/Reference: 15023E / Lord Marvel. - Production Year: 1963 (indicated by the case back serial number 3511500). - Movement: Seikosha manual-winding, 23 jewels (Diashock), 18,000 bph. - Case Material: 14K Gold Filled (as stamped on the inner case back). - Case Diameter: Approximately 36 mm (excluding crown). - Thickness: Approximately 10.5 mm. - Crystal: Domed acrylic crystal. - Water Resistance: Vintage piece; water resistance is not guaranteed. Timekeeping: - Flat: Running at +10s/day with a beat error of 2.6ms and an amplitude of 297°. - Back: Running at +11s/day with a beat error of 2.8ms and an amplitude of 302°. - "On hand" / Angled: Running at +49s/day with a beat error of 3.5ms and an amplitude of 257°. Inclusions: - Watch and Seiko-signed black leather strap. Production Details: Produced in May 1963, the Lord Marvel was conceived as Seiko's premier luxury offering. The 15023E houses one of the finest 18,000 bph manual-winding movements produced by the Suwa Seikosha factory, making it a cornerstone piece for any serious vintage Japanese watch collector.