This is a rare long-size model from Citizen's high-end pilot watch series, "PROMASTER SKY." ■ Key Features of This Item • 【Rare 19cm Wrist Circumference】 The current strap has an inner circumference of approximately 19cm. It's rare to find a used item with this much room, making it suitable for those with larger wrists. • 【Incredibly Lightweight】 Despite its substantial appearance, it's surprisingly light due to Citizen's proprietary "Super Titanium" construction. This makes it comfortable to wear for extended periods. ■ Main Functions and Specifications • Movement: Cal.U680 (Eco-Drive Radio-Controlled) • Functions: Radio reception in 4 world areas, 1/100 second chronograph, world time, flight computer, perpetual calendar • Material: Super Titanium (Dura-Tect treated for scratch resistance) • Water Resistance: 20 bar (200 meters) • Glass: Sapphire glass (anti-reflective coating) ■ Condition of the Item • Operation: Works perfectly. Radio reception and solar charging are both excellent. • Appearance: The crystal is scratch-free, and the case and strap are in beautiful condition with minimal signs of wear. • Size Wrist Circumference (Inner Diameter): Approximately 19cm As shown in the images, it measures approximately 19cm with a measuring tape. This is a generous size for a used item, making it suitable for those with larger wrists or those who prefer a looser fit. ■ Shipping The item will be carefully packaged with bubble wrap and shipped within 24 hours.