Seiko Vintage Alarm Chronograph - "Front Button" - A439-4000 - Men - 1980s Description Up for auction is a rare and iconic piece of digital watch history: the Seiko A439-4000 Alarm Chronograph. Produced in the early 1980s, this model is famous for its distinct futuristic "square" aesthetic and the four functional buttons located on the front of the case, rather than the sides. This watch represents the era when Seiko was leading the "digital revolution," offering high-end features in a durable, stylish package. Product Specifications Brand: Seiko Model: Alarm Chronograph "Front Button" Reference Number: A439-4000 Serial Number: 246368 (Dating to approximately April 1982) Movement: Quartz (Caliber A439) Case Material: Stainless Steel / Base Plastic back structure Bracelet: Original Seiko-signed stainless steel integrated bracelet Functions: Time (12/24h), Date, Day of the week indicator, Alarm, Chronograph (Stopwatch), and original Light. Case Width: Approx. 35mm (excluding buttons) Condition: * Visual: Good vintage condition with minor surface scratches on the case and bracelet consistent with age. The crystal shows light wear but remains clear. Technical: Fully functional. The LCD display is crisp with no "bleeding." All front buttons (Mode, Lock, Start/Stop, Reset/Lap) are tactile and responsive. The light is operational. Why Bid on This Piece? The A439 series is a must-have for Seiko digital enthusiasts. Unlike many digital watches of the era that used chrome-plated resin, this model features a heavy-duty stainless steel top case, giving it a premium weight and longevity on the wrist. Its "tool watch" layout and clear digital display make it both a conversation starter and a highly practical daily vintage wearer.