CITIZEN Promaster Eco-Drive B873 — 300M / Solar-Powered / Men’s Diver Watch (Unused / Overseas Model / Used in Japan & Authenticated) This is a rare overseas-market CITIZEN Promaster men’s watch — a model not officially released in Japan. The Promaster line, launched in 1989, is known worldwide for its high durability, professional-grade performance, and award-winning design (Good Design Award 2022). Powered by Eco-Drive solar technology, this watch converts light into energy, eliminating the need for battery replacement — ideal for users who want reliability with minimal maintenance. Before shipping, the watch is fully solar-charged, and a printed Japanese manual plus customer service information are included for added peace of mind. Specifications Brand: CITIZEN Model: Promaster Eco-Drive Movement: Quartz (Cal. B873) Power: Eco-Drive (solar) Functions: Date display 300M water resistance Luminous hands & indexes Case Diameter: approx. 48.2 mm Thickness: approx. 18 mm Wrist Size: approx. 16.5–21.6 cm Case Material: Stainless steel Strap Material: Rubber Crystal: Mineral crystal Condition: Unused Accessories: Special “air tank” style Promaster box English manual International warranty Japanese instruction manual (printed) Manual URL: https://citizen.jp/support/manual/b872_b873.pdf Condition Watch: Unused / New Function: Fully working Solar charged before shipping Strap & case: No signs of wear Authenticity Purchased from a reputable Japanese distributor and professionally authenticated. Guaranteed 100% genuine CITIZEN. Shipping Shipped from Japan via DHL Express or EMS Fully insured & trackable Estimated delivery: 5–10 business days Buyers are responsible for customs duties & taxes Carefully packaged for secure international delivery.