Citizen ATTESA Super Titanium™ Atomic Time 42mm Blue Dial [AT8188-64L]

The Citizen ATTESA AT8188-64L blends superior atomic precision with advanced material engineering for a chronograph built for global living and everyday reliability. Its 42 mm Super Titanium™ case and matching bracelet offer remarkable strength, remarkable lightness, and outstanding scratch resistance — characteristics that define the ATTESA family’s elevated performance ethos. 

At the heart of this model is Eco-Drive Calibre H800, a light-powered movement that synchronizes the time automatically via atomic time signals, ensuring accuracy in 26 global time zones. The striking blue dial — inspired by the oceans — reflects layered hues underceramic elements for visual depth while maintaining excellent legibility through applied indices and chronograph registers. 

This atomic timekeeper offers broad functionality, including a 1/20-second chronograph up to 60 minutes, perpetual calendar, 12/24-hour time display, power reserve indicator, day/date display, and world time capabilities. With 100 metre water resistance and scratch-resistant sapphire crystal, the AT8188-64L is engineered to perform as well on travel as it does on everyday wear, exemplifying Citizen’s fusion of form and technical substance. 

Technical Specifications

• Model: AT8188-64L

• Collection: ATTESA

• Movement: Eco-Drive, Calibre H800

• Timekeeping Technology: Atomic Timekeeping (Radio-Controlled)

• Accuracy (Without Signal Reception): ±15 seconds per month (typical)

• Case Size: 42 mm

• Case Material: Super Titanium™

• Case Colour: Silver-Tone

• Dial: Blue (iridescent structural blue with ocean-inspired tones)

• Crystal: Sapphire Crystal

• Bracelet: Super Titanium™ Bracelet

• Clasp: Fold Over Clasp with Push Button

• Water Resistance: 100 Metres / 10 Bar / 333 Feet

• Functions:

  • Atomic Timekeeping with synchronized time adjustment available in 26 Time Zones

  • 1/20-Second Chronograph (Measures up to 60 Minutes)

  • Perpetual Calendar

  • Day/Date Display

  • 12/24-Hour Time Display

  • Power Reserve Indicator

• Warranty: 5-Year Citizen International Warranty 

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