CITIZEN Promaster 100th Anniversary Limited Edition Eco-Drive Radio-Controlled Waterproof Watch BY3005-56E Men's Black

[LAYERS of TIME] In 1924, we created our first product, a pocket watch. The theme of the cross-sectional project celebrating this milestone 100 years since then is "LAYERS of TIME." Using Fujifilm Corporation's structural color ink, the dial features a design evocative of the beautiful interior scenery of the Earth, including strata and minerals, created over the ages. [PROMASTER: A genuine sports watch that can withstand harsh environments] The back of the dial features a subtle black gradation applied by inkjet printing, creating a rich look. The uniform white hands and indexes accentuate the brilliance of the structural color and add a refreshing impression. The distinctive map layout is engraved on the case back, allowing you to experience both sky and earth at the same time. [Citizen's radio-controlled watch keeps accurate time at all times] Equipped with Citizen's proprietary light-powered Eco-Drive technology, this watch eliminates the need for periodic battery replacement, eliminating the need for hassle. This world time radio-controlled watch synchronizes with accurate time no matter where you are. It's packed with radio-controlled watch technology, a field Citizen has been pursuing for 30 years. [Designed for long-lasting use] Scratch-resistant, highly transparent sapphire crystal with anti-reflective coating to prevent light reflections on the glass surface. Water resistant to 20 ATM. Convenient date display and luminous hands and indexes. [Product Details] Light-powered Eco-Drive radio-controlled watch, ±15 seconds per month (when not receiving a signal), light-powered for approximately 2.5 years, sapphire crystal (anti-reflective coating), case/band: stainless steel, water resistant to 20 bar, magnetic resistance grade 1, luminous (hands and indexes), aviation slide rule, screw-down crown, structural color ink, dial parts: recycled materials, limited to 10,000 pieces worldwide