Citizen Promaster Air Automatic 40mm Sunray Blue – NK0040-58L

Aviation-inspired detail meets everyday mechanical watchmaking in the Citizen Promaster Air NK0040-58L. Its sunray blue dial, applied indices and red accents bring a distinctive instrument-panel character to the 40mm silver-tone Super Titanium case.

Inside, Citizen’s automatic Caliber 8310 offers a 60-hour power reserve, keeping time through a weekend away from your wrist. An outer slide-rule bezel adds pilot-watch functionality, while an anti-reflective sapphire crystal and luminous hands help keep the display clear.

Specifications

• Movement: Automatic Caliber 8310 with hacking function
• Power reserve: 60 hours
• Case: 40mm round Super Titanium, silver-tone finish
• Dial: Sunray blue with applied indices and red accents
• Crystal: Anti-reflective sapphire
• Bezel: Outer slide-rule
• Display: Hours, minutes, seconds and date at 3 o’clock
• Bracelet: Super Titanium with fold-over clasp and hidden push buttons
• Water resistance: 200 meters / 20 bar
• Reference: NK0040-58L