{"brand": {"name": "Jacob & Co.", "slug": "jacob-and-co", "url": "https://mostexpensivewatches.net/brand/jacob-and-co", "tier": "ultra_modern", "founded": 1986, "country": "USA"}, "lang": "ja", "inventory": {"count": 1, "median": 3000.0, "low": 3000.0, "high": 3000.0, "brands": 1, "merchants": 1, "in_stock": 0}, "listings": [{"id": "h_7641602916578", "title": "Jacob & Co. Jacob & Co Five Time Zone Diamond Dial & Bezel", "brand": "Jacob & Co.", "model": "Jacob & Co Five Time Zone Diamond Dial & Bezel", "reference": "01707", "price_usd": 3000.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Stainless Steel", "case_size_mm": 48.0, "movement": "Automatic", "complications": [], "merchant_slug": "watch-collectors-uk", "merchant_name": "Watch Collectors UK", "image_url": "https://cdn.shopify.com/s/files/1/0628/2218/7234/products/jacob_co_five_time_zone_diamond_dial_bezel_second_hand_watch_collectors_1.jpg?v=1647031850", "detail_url": "https://mostexpensivewatches.net/listing/h_7641602916578", "buy_url": "https://mostexpensivewatches.net/out/h_7641602916578", "alt_buy_urls": [{"partner": "goldsmiths", "name": "Goldsmiths", "region": "UK", "url": "https://mostexpensivewatches.net/out/h_7641602916578/via/goldsmiths"}, {"partner": "selfridges", "name": "Selfridges", "region": "UK", "url": "https://mostexpensivewatches.net/out/h_7641602916578/via/selfridges"}, {"partner": "farfetch", "name": "Farfetch", "region": "Global", "url": "https://mostexpensivewatches.net/out/h_7641602916578/via/farfetch"}], "available": false}], "references": [{"slug": "jacob-co-astronomia-sky", "brand": "Jacob & Co.", "ref": "AS900", "model": "Astronomia Sky", "case_material": "18k Rose Gold", "url": "https://mostexpensivewatches.net/reference/jacob-co-astronomia-sky", "description": "The Jacob & Co. Astronomia Sky AS900 in 18k rose gold was introduced in 2016 as a limited edition of 18 pieces. Collectors prioritize this reference for the JCAM11 caliber, a manual-wind movement featuring a triple-axis gravitational tourbillon, a rotating celestial vault, and a three-dimensional sidereal display. The 47mm case utilizes a sapphire crystal monoblock construction to provide visibility of the four-arm vertical movement, which includes a 288-facet Jacob-cut diamond and a magnesium globe. This reference marked a significant technical evolution for the brand by integrating astronomical complications with the rotating carousel architecture. On the secondary market, this model typically trades in the mid-to-high six-figure range, often between $400,000 and $600,000 depending on condition. A notable production detail is the celestial dial made of grade 5 titanium with 18k gold hand-engraved zodiac signs, which rotates once every sidereal year."}], "reviews": [{"slug": "jacob-co-astronomia-sky", "lang": "ja", "title": "Jacob & Co. Astronomia Sky AS900 レビュー", "name": "Jacob & Co. Astronomia Sky AS900", "brand": "Jacob & Co.", "model": "Astronomia Sky", "reference": "AS900", "case_material": "18k Rose Gold", "url": "https://mostexpensivewatches.net/ja/review/jacob-co-astronomia-sky", "reference_url": "https://mostexpensivewatches.net/ja/reference/jacob-co-astronomia-sky", "score": {"overall": 6.5, "liquidity": 4, "scarcity": 7, "recognition": 8, "buying_risk_control": 7}, "verdict": "Jacob & Co. Astronomia Sky AS900 は、ブランド認知、識別しやすいデザイン、18k Rose Gold ケースを備えた本格的なコレクター向けリファレンスです。良い個体は状態、オリジナル性、付属品、来歴で評価されます。", "why_collectors_care": "Jacob & Co. AS900 は識別しやすく、すぐに代替を見つけにくく、販売店・オークションハウス・個人顧客に理解されているため検索されます。流動性は重要です。", "market_position": "Jacob & Co. の市場を見るには、提示価格だけでは不十分です。ライブ在庫、落札結果、最近の流通量、同じ仕様がどれだけ早く消えるかを比較します。", "buying_checklist": ["正確なリファレンス、文字盤、ケース素材、製造時期を確認する。", "付属品完備、サービス履歴、信頼できる販売者を優先する。", "提示価格を他の在庫だけでなく落札結果と比較する。", "支払い前に研磨、交換部品、来歴を確認する。"], "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "auction_comp_count": 0}], "auction_lots": [], "docs": {"search": "https://mostexpensivewatches.net/api/listings/search?brand=Jacob+%26+Co.&limit=12", "references": "https://mostexpensivewatches.net/api/references?brand=Jacob+%26+Co.&limit=12", "reviews": "https://mostexpensivewatches.net/api/reviews?brand=Jacob+%26+Co.&lang=ja&limit=12", "auctions": "https://mostexpensivewatches.net/api/auctions?brand=Jacob+%26+Co.&limit=12"}}