{"reference": {"slug": "grand-seiko-sbgw263-platinum-engraved", "brand": "Grand Seiko", "ref": "SBGW263", "model": "Masterpiece Collection Engraved", "case_material": "Platinum", "url": "https://mostexpensivewatches.net/reference/grand-seiko-sbgw263-platinum-engraved", "description": "The Grand Seiko Masterpiece Collection SBGW263 was released in 2020 as a limited edition of 20 pieces to commemorate the 60th anniversary of the brand. This reference features a 39mm case constructed from Platinum 950 and is powered by the manual-wind Caliber 9S64, which offers a 72-hour power reserve and an accuracy rating of +5 to -3 seconds per day. Collectors prioritize this model for its hand-engraved 18k white gold dial and handset, executed by master engraver Kiyoshi Terui at the Shizukuishi Watch Studio. The intricate engraving replaces traditional printing for the logo and indices. On the secondary market, this reference typically commands prices between $75,000 and $95,000, depending on condition and provenance. A notable production detail is that the \"Star\" mark at six o'clock signifies the use of precious metal for the hour markers, a hallmark of high-end vintage and modern Grand Seiko pieces."}, "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "listings": [], "auction_lots": []}