Title: Citizen Promaster Sky Eco-Drive Radio Controlled Chronograph - Ref. E610-S07431 The Spirit of Aviation and Innovation The Citizen Promaster Sky series has long been the gold standard for professional pilots and aviation enthusiasts worldwide. This specific model, the E610-S07431, represents the pinnacle of Citizen's mission: to merge "unstoppable power" with "absolute precision." Important Note for International Buyers: This model (Cal. E610) is designed for the Japanese market and its radio-controlled synchronization feature only supports the Japanese standard time signal (JJY). When used outside Japan, it functions as a highly accurate Eco-Drive quartz watch (monthly accuracy of ±15 seconds). Time can be adjusted manually for any time zone using the "Local Time" (L-TM) mode. Description: This is a high-performance Citizen Promaster Sky, featuring the reliable E610 Eco-Drive movement. This solar-powered timepiece is radio-controlled, ensuring absolute precision by synchronizing with atomic clocks. Condition: Very good. Movement: Fully functional. The Eco-Drive system charges correctly and holds power. Radio reception is confirmed. Case/Bezel: Excellent condition with minor signs of wear consistent with age. slight scratches on the bezel. Crystal: Clear and scratch-free sapphire crystal. Bracelet: Original stainless steel bracelet with a folding clasp. Fits up to a 160 mm wrist. A robust and professional-grade pilot's watch, perfect for collectors and daily use alike. Brand: Citizen Model: Promaster Sky / Radio Controlled Reference Number: E610-S07431 Movement: Eco-Drive (Solar Powered) Caliber: E610 Case Material: Stainless Steel Case Diameter: Approx. 44-45 mm (excluding crown) Glass: Sapphire Crystal Functions: Chronograph, Radio-Controlled, Date, Perpetual Calendar, Alarm, Tachymeter Water Resistance: 200m (20 ATM) Notice Items will be carefully packaged and shipped via DHL. Delivery typically takes approximately 1 to 2 weeks. Import duties, taxes, and fees are not included in the item price. These charges are the responsibility of the purchaser. Your country's customs office or delivery company may contact you by phone or email regarding customs clearance procedures. Please ensure you are available to answer calls. We appreciate your understanding and cooperation. ※Shipments to the Americas are excluded. Search tags/terms; Watches, Seiko Watches, Omega Watches, Rolex Watches, Tecnotempo Watches, TAG Heuer Watches, Longines Watches, Tissot Watches, Breitling Watches, Maurice Lacroix Watches, Cartier Watches, Ublast Watches, Rado Watches, Gucci Watches, Citizen Watches, Hamilton Watches, Tudor Watches, IWC Watches, Baume & Mercier Watches, Oris Watches, Bulova Watches, Orient Watches, Montblanc Watches, Antoine Nicolas 1986 Watches, Hermes Watches, Panerai Watches,