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  • Eco-Drive

  • Perpetual Calendar

  • Super TitaniumTM

  • Duratect

  • Water Resistant to 20bar

  • Flying Distance and Navigation Calculations


Calibre No. F900
Maximum run time from full charge
(Normal Use Condition)
Approximately 1.5 years
Movement Eco-Drive
Signal Reception GPS Satellite Wave
Strap Titanium
Water Resistant Water Resistant to 20 bar
Weight 126g
Thickness 14.6mm
Case Size


Case Titanium
Surface Processing Duratect MRK
Glass Sapphire Glass (Non Reflection Coating)
  • Date and Day Display
  • Alarm
  • Chronograph
  • Dual Time
  • Duratect α Duratect MRK
  • Super Titanium
  • Eco-Drive (recharged by any light source, no need for regular battery replacement)
  • Satellite Timekeeping System (Reception Area: Worldwide)
  • Fastest Time For Reception 3 sec *
  • Non Reception: ±5 Sec / Month
  • Light Level Indicator
  • Insufficient Charge Warning Function
  • Made In Japan
  • Overcharge Prevention Function
  • Perpetual Calendar
  • Power Reserve Level Indicator
  • World Time in 40 Time Zones
  • Summer Time (ON/OFF)
  • Sapphire Glass (Non Reflection Coating)
  • UTC (Universal Time Coordinated)
  • GPS (Location Information Obtainment Function)


* Fastest time. As of May 2015 as a light-powered analogue watch (according to the research data by Citizen Watch Co., Ltd)