Citizen Men's Promaster Skyhawk / Sky Eco‑Drive U830

Model: JV2000‑51L
Brand: Citizen
Collection: Promaster Skyhawk / Sky Eco‑Drive U830
Gender: Men’s watch / Unisex

• Case Material: Stainless steel
• Case Shape: Round
• Case Colour: Silver stainless steel
• Crystal: Anti‑reflective sapphire crystal
• Case Back: Screw‑down stainless‑steel caseback
• Bezel: Bi‑directional rotating stainless‑steel bezel with slide‑rule / aviation markings
• Bracelet Material: Stainless‑steel bracelet
• Bracelet Colour: Silver
• Dial Colour: Blue
• Dial/Display Type: Analog‑digital (ana‑digi)
• Luminescent Elements: Luminous hands and indexes
• Clasp Type: Folding safety deployment clasp with push‑buttons

• Movement Type: Eco‑Drive (solar‑powered quartz, analog‑digital)
• Caliber: Citizen U830
• Power Source: Solar cell charging under any light
• Power Reserve: Up to 3 years in power‑save mode from full charge
• Time Accuracy: ±15 seconds per month
• Power‑Save / Indication:
• Low‑light / power‑save operation
• Power‑reserve indicator
• Pre‑emptive LED‑dimming in low‑light conditions

• Case Diameter (without crown): 43 mm
• Case Thickness: 13.7–13.8 mm
• Case‑to‑Lug Length: Approx. 49–50 mm
• Lug Width: 20–22 mm (20 mm and 22 mm both cited; 20 mm is the more common spec)
• Weight: 137–176 g (varies by source; 137 g and 176 g are both documented)
• Color Configuration:
• Case Colour: Silver stainless steel
• Bezel Colour: Silver stainless steel with aviation markings
• Dial Colour: Blue (analogue) with digital display segment
• Bracelet Colour: Silver stainless steel

• 200 m water resistance (20 bar / 20 ATM)
• Stainless‑steel case with anti‑reflective sapphire crystal
• Eco‑Drive U830 solar‑powered movement
• 2–3‑year manufacturer warranty (varies by retailer)
• Official Citizen box and instruction manual included