Citizen Promaster Air GMT NB6045-51H Automatic Mechanical Gray Dial Men's Watch

Citizen NB6045-51H Promaster Air GMT is a professional aviation-inspired mechanical timepiece designed for pilots, travelers, and enthusiasts who appreciate precision engineering and rugged functionality. Featuring a bold 44.5mm gray ion-plated stainless steel case with a matching stainless steel bracelet, this pilot's watch showcases a sophisticated gray dial with luminous hands and Arabic numeral markers for exceptional legibility. A fixed 24-hour GMT bezel and an internal rotating slide-rule bezel, operated by the secondary crown, provide practical aviation and navigation functions. The watch is protected by an anti-reflective sapphire crystal for outstanding durability and clarity.

Powered by Citizen's in-house Caliber 9054 automatic movement, the NB6045-51H features a true GMT function with an independently adjustable local hour hand, making it ideal for international travel. The movement offers a 50-hour power reserve, 24 jewels, hacking seconds, magnetic resistance up to 16,000 A/m, and a date display at 3 o'clock. With a 200-meter (20 BAR) water resistance, screw-down crown, and robust construction, this Promaster Air GMT is built for both professional use and everyday adventures.

Key Features

• Model: NB6045-51H
• Brand: Citizen
• Collection: Promaster Air GMT
• Movement: Automatic Mechanical (Caliber 9054)
• Jewels: 24 Jewels
• Accuracy: -10/+20 Seconds Per Day
• Power Reserve: Approximately 50 Hours
• Display: Analog GMT
• Dial: Gray
• Case Material: Gray Ion-Plated Stainless Steel
• Case Diameter: 44.5 mm
• Case Thickness: 12.7 mm
• Crystal: Anti-Reflective Sapphire Crystal
• Bezel: Fixed 24-Hour GMT Bezel with Internal Rotating Pilot's Slide Rule
• Bracelet: Gray Ion-Plated Stainless Steel Bracelet
• Clasp: Safety Fold-Over Clasp with Push Buttons
• Functions: GMT (Second Time Zone), Hours, Minutes, Seconds, Date Display, Hacking Seconds, Magnetic Resistance (16,000 A/m)
• Crown: Screw-Down Crown