CITIZEN NJ0155-87E

The Citizen NJ0155-87E, part of the "Tsuyosa" collection, is an automatic watch featuring a black dial (sometimes described as camouflage) and an all-black ion-plated stainless steel case and integrated bracelet. It combines a sporty, modern design with reliable mechanical functionality. 
 

• Movement: Automatic (self-winding) mechanical, Citizen Caliber 8210, Japan Made
• Power Reserve: Approximately 40-42 hours when fully wound
• Case Material: Stainless Steel with black Ion Plating (IP) finish
• Case Size: 40 mm (diameter)
• Case Thickness: 11.7 mm
• Dial Color: Black (often featuring a subtle camouflage or sunray pattern depending on lighting/market description)
• Crystal (Glass): Sapphire Crystal (scratch-resistant and anti-reflective)
• Strap Material: Integrated Stainless Steel bracelet with black finish
• Water Resistance: 50 meters (5 bar / 5 ATM), suitable for daily wear and minor water exposure like splashes, but not swimming or diving
• Weight: Approximately 138 grams 

• Date Display: A date window is located at the 3 o'clock position.
• Cyclops Magnifier: A magnifier is integrated into the sapphire crystal over the date window.
• Case Back: Features a transparent exhibition case back, allowing view of the automatic movement.
• Luminescence: Luminous material on hands and hour indices for low-light visibility.
• Hacking Seconds: The movement supports hacking, meaning the second hand stops when setting the time for precise synchronization.
• Manual Winding: The watch can be manually wound using the crown, in addition to automatic winding via wrist motion.
• Clasp: Fold-over clasp with a push-button release.