Citizen Men's Promaster Sky / Pilot Eco‑Drive Radio‑controlled

Model: CB5860‑27E
Brand: Citizen
Collection: Promaster Sky / Pilot Eco‑Drive Radio‑controlled
Gender: Men’s watch

• Case Material: Stainless steel
• Case Shape: Round, pilot‑style sports case
• Case Colour: Silver stainless steel
• Crystal: Flat sapphire crystal with anti‑reflective treatment
• Case Back: Solid stainless‑steel caseback
• Bezel: Bi‑directional rotating stainless‑steel bezel with slide‑rule (tachymeter / pilot scale)
• Bracelet Material: Calf‑leather strap
• Bracelet Colour: Brown
• Dial Colour: Black
• Luminescent Elements: Super‑LumiNova hands and indices
• Clasp Type: Double‑push‑button folding clasp

• Movement Type: Eco‑Drive (solar‑powered, radio‑controlled quartz)
• Caliber: Citizen E660
• Power Source: Solar cell under dial, charging under any light
• Power Reserve: Up to 10 months (10 months fully operational, ~36 months in power‑save mode)
• Time Accuracy: Effectively 0 seconds deviation when synchronized to radio‑signal time
• Signal Source: Multi‑frequency radio time control (Japan, USA, Germany, China)
• Low‑Power / Overcharge: Low‑charge warning (2‑second jumps of seconds hand), power‑save mode, and overcharge protection

• Case Diameter (without crown): 43,5–44 mm
• Case Thickness: 14 mm
• Case‑to‑Lug Length: 43–44 mm
• Lug Width: 23 mm
• Weight: 98–106 g (with leather strap)
• Color Configuration:
• Case Colour: Silver stainless steel
• Bezel Colour: Stainless steel with black / green‑tone slide‑rule ring
• Dial Colour: Black with white hands and indexes
• Bracelet Colour: Brown leather

• 200 m water resistance (20 bar / 20 ATM)
• Stainless‑steel case with anti‑reflective sapphire crystal
• Eco‑Drive E660 solar‑powered radio‑controlled movement
• 2–5‑year manufacturer warranty (varies by retailer)
• Official Citizen box and instruction manual included