The Casio AE-1100W-1B is a legendary, high-utility Japanese digital sports timepiece engineered for frequent travelers, students, and outdoor enthusiasts who demand dependable, multi-timezone functionality without the hassle of frequent battery changes. Sharing a similar pedigree with the famous "Royale" world-time line, the AE-1100W introduces a distinctive circular world map display at the top of the dial for instant geographic time tracking. Across international watch collector circles and everyday carry forums, it has earned defining community nicknames—the "World Map Navigator", "10-Year Battery World Timer", "Casio Map Dial AE1100", or simply the "AE-1100 Black". It earns these names for its unique world map time-zone indicator, rugged matte black resin architecture, and long-lasting energy efficiency. It unites a lightweight resin case measuring 43.7mm in width (with a 48.1mm lug-to-lug length and a 13.7mm profile thickness) with a high-contrast digital LCD face, scratch-resistant resin glass, an in-house Japanese multi-function quartz digital engine, and an integrated black resin strap. Weighing an ultra-light 40.0 grams, it is meticulously calibrated for everyday wear, travel adventures, and rugged outdoor utility.

The defining visual centerpiece of this AE-1100W-1B reference is its World Map Time-Zone Display and Multi-Function Digital Layout. The upper portion of the watch face features a graphic world map that highlights selected time zones and cities, making it effortless to visualize global time differences at a glance. The lower digital LCD screen displays hours, minutes, seconds, day, and date with crisp, legible numerals. Turning the watch over reveals a solid stainless steel screw-caseback stamped with Casio water-resistance data and module specifications.

Beneath its rugged exterior, the watch is driven by Casio’s advanced in-house Japanese digital quartz engine powered by a high-capacity CR2032 lithium battery. Engineered for extreme energy efficiency, the caliber delivers an astounding 10 years of continuous operation on a single battery under normal use conditions.

The case is engineered with ergonomic, lightweight proportions, measuring an official 48.1mm in case length, 43.7mm in case width (diameter), a durable profile thickness of 13.7mm, and a total weight of 40.0 grams. Dial protection is provided by a scratch-resistant resin glass crystal. Engineered for active lifestyles, the case secures a professional 10-bar (100 meters / 330 ft) water resistance rating, making it completely safe for swimming, snorkeling, and recreational water sports. The watch comes fitted with a flexible black resin strap fastened with a secure stainless steel pin buckle.

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