Grand Seiko 4520-8000 “45GS” – Hi-Beat Hand-Wind – Cap Gold Case – Excellent ConditionModel BackgroundThe Grand Seiko 4520-8000 is part of the famous “45GS” line, housing the caliber 4520 – a hand-wound, 36,000 bph hi-beat movement regulated to Grand Seiko’s high chronometer standard. The 45GS series is also a core expression of Grand Seiko’s “Grammar of Design”: sharp, faceted lugs, mirror-polished planes, and a clean, no-date dial layout that has become an icon for the brand. ConditionCase & Caseback• Original gold case (gold-capped over steel for this reference) in excellent condition• Unpolished, with well-defined, sharp edges and original geometry intact• Light, even gold patina present, giving it a very attractive vintage character• Caseback is in extremely nice condition, with crisp engravings and no major tool marksDial & Hands• Original dial in mint condition – one of the highlights of this piece• No visible spotting, stains, or aging to the naked eye• Original handset is very nice, with clean surfaces and an excellent match to the dial and markersCrystal• Crystal is in excellent condition, with only minimal signs of wear visible at certain angles• Presents clean and clear on the wrist Movement / Function• In-house Grand Seiko caliber 4520 hi-beat manual-wind movement (36,000 bph, no date)• Movement is very clean, running well and keeping good time in my observation• Winding and setting functions operate as they should• Service history is unknown, however performance is currently strong. • As with any vintage watch, water resistance is not guaranteed What’s Included• Grand Seiko 4520-8000 watch• Strap/bracelet as shown in the photos Notes & AuthenticityThis is a high-grade, all-original example of the 45GS, with:• Unpolished gold case in excellent condition• Mint dial and very nice handset• Extremely nice caseback• Clean, well-running 4520 hi-beat movementTo the best of my knowledge and inspection, the case, dial, hands, crown, movement, and caseback are original Grand Seiko components for this reference. I offer a money-back guarantee on authenticity.Please review all photos carefully as they form part of the description, and feel free to contact me for additional pictures or a video of the watch running.