The Citizen Series 8 880 GMT NB6036-52N (popularly known among watch collectors and horological enthusiasts by its series nicknames, the "Series 8 GMT", "100th Anniversary GMT", or "Blue MOP GMT") is an exclusive, high-performance Swiss-inspired mechanical traveler's watch. Created as a special limited edition to commemorate the 100th anniversary of the very first Citizen-branded watch (1924–2024), this 41mm timepiece features a production run of just 2,200 pieces worldwide. Designed for international jet-setters, modern executives, and watch collectors who value avant-garde materials and multi-time zone utility, it delivers a striking wrist presence suitable for business travel and formal occasions. The defining visual highlight of this NB6036 reference is its iridescent blue mother-of-pearl dial, which reflects light like ocean waters beneath a clear sky. Framed by a bi-directional 24-hour bezel with a two-tone black and blue insert, the dial features dark-coated applied hour indices and hands treated with high-luminance Super-LumiNova. A dedicated 24-hour GMT hand works in tandem with the inner dial scale and outer rotating bezel to track multiple time zones simultaneously, complemented by a date window at the 3 o'clock position. Beneath its artistic exterior, the watch is driven by Citizen's advanced in-house Caliber 9054 automatic mechanical movement. Operating at a frequency of 28,800 vibrations per hour with 24 jewels, this "True GMT" (traveler GMT) engine features an independently adjustable local hour hand, allowing the wearer to jump local time forward or backward in one-hour increments without stopping the minute hand or altering GMT tracking. Engineered for modern life surrounded by electronics, the movement provides enhanced anti-magnetic resistance up to 16,000 A/m and delivers an extended 50-hour power reserve. The 41mm watch housing is crafted from solid 316L stainless steel finished with alternating dark grey and dark blue PVD/IP coatings on its angular facets. Protecting the dial face is a scratch-resistant synthetic sapphire crystal treated with anti-reflective coating for glare-free readability. A screwed-down sapphire exhibition caseback exposes the movement's oscillating weight and mechanical balance. Built for global travel durability, the case achieves a certified 100-meter (10 bar / 330 ft) water resistance rating. The watch comes completed on an integrated stainless steel H-link bracelet featuring matching two-tone dark grey and blue IP links, fitted with a fold-over deployment clasp with hidden push-button release.
