History Launched in the late 1960s, the Seiko World Time collection emerged during a period of rapid expansion in global air travel, directly catering to the needs of international travelers, pilots, and business professionals. Reference numbers 6117-6010 represent evolutions of Seiko's earliest world time models. These watches are renowned not only for their practical multi-time zone function but also for their vibrant, international design language. Today, collectors highly value their historical significance within Seiko's lineage of specialized tool watches and their enduring, distinctive style. This watch boasts three key features: its production year of 1968, its status as a Japanese domestic market (JDM) version, and its original beaded bracelet. This Seiko 6117-6010 is an extremely rare version specially crafted for the 1968 Mexico City Olympics. It features a world city bezel and a GMT function. While some lettering on the dial is slightly blurred, the overall surface is relatively clean. Completely original, it is a rare collector's item. ✦ Key Features: • 1968 Mexico City Edition • World City Bezel • GMT Complication ✦ Condition: • Timekeeping and functions are all working properly • Performed cleaning and oiling in April 2026 • All watches show signs of age and use, and are considered non-water-resistant. 【Brand】SEIKO 【Model】6117-6010 【Movement】6117A Automatic Mechanical Movement 【Crown】Original Crown 【Case Diameter】38mm (excluding crown) 【Dial】Original Dial 【Strap】Original Steel Strap, Original Buckle. Can be worn up to 21 inches. 【Functions】1. Rotating the Inner Bezel: With the crown fully depressed (position 0), rotate the world city dial on the outer bezel. 2. Pull out to the first position (position 1), and rotate it to quickly adjust the date. 3. Pull out to the second position (position 2), and rotate it to adjust the hour and minute hands (the red GMT hand will move accordingly).