Designed for aviation enthusiasts, the Promaster Sky’s detailed aesthetic features a rotating slide rule and a high visible dial with 8 arabic numbers and luminous hands and markers for night visibility. Equipped with Citizen core Eco-Drive technology, allowing the watch to generate energy from both sunlight and indoor light thus ensuring constant battery. The combination of Eco-Drive and superior scratch-resistant sapphire glass ensure a reliable and durable timepiece. Additional features include dual time functionality, date, 12/24 hour time display and water resistance up to WR200/20 bar suitable for swimming and snorkelling activity. The classic black dial, black stainless steel case and sophisticated black calf leather band allow for both professional and everyday use. 42.5mm case. Calibre B877.


  • COLLECTION: Promaster Sky
  • TECHNOLOGY: Eco-Drive
  • CASE MATERIAL: tainless Steel
  • DIAL: Black
  • CASE SIZE (MM): 42.5
  • BAND: Leather Strap, Buckle
  • GLASS: Mineral Crystal
  • WATER RESISTANCE: WR200/20Bar [Swimming / Snorkeling]
  • FUNCTIONS: Calibre B877, Dual Time Display, Date, 12/24 hr Time, Power Reserved Indication


SKU BJ7135-02E
Brand Citizen

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