Seiko 5 Automatic Moonphase | octagonal rhombus

Seiko 5 Automatic Moonphase Ref. 6347-6010 | Midnight Blue Dial | Silver Mirror Bezel | 1980s The Seiko 5 Automatic Moonphase Ref. 6347-6010 is a rare and striking timepiece that showcases Seiko’s horological ingenuity and design innovation. Featuring a midnight blue dial and a silver mirror bezel, this watch exudes elegance and sophistication. The octagonal rhombus-shaped case (35mm x 39mm) gives it a bold, architectural presence, while the oversized moonphase complication-spanning nearly half the dial-serves as the centerpiece of this exceptional watch.   Powered by the legendary Seiko 6347 caliber, the only automatic moonphase movement Seiko ever created, this timepiece is a testament to the brand’s ability to rival Swiss luxury standards in technical sophistication and design. Whether you’re a Seiko enthusiast or a collector of rare complications, this Moonphase is a true horological gem. Key Features: Brand: Seiko Model: Seiko 5 Moonphase Reference Number: 6347-6010 Year: 1980s Movement: Seiko 6347 Automatic Moonphase Movement Case Material: Stainless Steel Dial: Midnight Blue with Oversized Moonphase Complication Bezel: Silver Mirror Finish Crystal: Mineral Bracelet: Original Seiko Stainless Steel Bracelet Condition: Vintage, Excellent Specifications: Case Dimensions: 35mm (Width) x 39mm (Length) Case Thickness: 11mm Lug Width: 18mm Water Resistance: Vintage (Splash Resistant) Historical Significance: The Seiko 5 Moonphase 6347 series is a rare and iconic collection, introduced in the 1980s as part of Seiko’s ambitious venture into complex mechanical complications. The 6347 caliber is the only automatic moonphase movement Seiko ever created, showcasing the brand’s commitment to innovation and technical excellence. The oversized moonphase disc is a standout feature, embodying Seiko’s ability to combine functionality with striking design. This watch represents a unique chapter in Seiko’s history, making it a highly collectible piece for enthusiasts of Japanese horology. Why This Watch Stands Out: Oversized Moonphase Complication: The moonphase disc spans nearly half the dial, making it a visually striking and functional feature. Silver Mirror Bezel: The bezel’s silver mirror finish adds a touch of modernity and elegance. Octagonal Rhombus Case: The unique octagonal rhombus-shaped case gives the watch a bold, architectural presence. Mineral Crystal: The durable mineral crystal ensures clarity and protection while maintaining the watch’s vintage appeal. Legendary 6347 Movement: The Seiko 6347 caliber is the only automatic moonphase movement the brand ever produced, making this watch a rare and technical masterpiece. Midnight Blue Dial: The deep blue dial with its oversized moonphase complication is both elegant and eye-catching.