The Citizen AQ4100-22L from The CITIZEN collection is a refined expression of regulated precision and disciplined Japanese craftsmanship.

At its core is the high-accuracy Eco-Drive Calibre A060, individually regulated to achieve an exceptional ±5 seconds per year. This level of performance begins with the careful selection of crystal oscillators, each subjected to a six-month observation period to confirm long-term stability before assembly. After casing, every movement is retested to ensure it meets Citizen’s strict performance standards.

To further preserve accuracy across changing environments, the A060 integrates an advanced temperature compensation system. Internal temperature is measured 1,440 times per day in 0.1-degree increments, enabling automatic real-time correction. Because thermal fluctuation is one of the primary variables influencing quartz timekeeping, this continuous analysis ensures sustained annual precision.

Citizen’s proprietary Eco-Drive technology continuously converts natural or artificial light into stored energy, eliminating battery replacement while providing approximately 1.5 years of autonomy when fully charged.

Beyond regulation and energy efficiency, the A060 incorporates intelligent protection systems designed to maintain long-term stability:

• Shock Detection safeguards movement alignment following impact

• Automatic Hand Position Adjustment preserves visual precision

• Overcharging Prevention regulates energy accumulation

• Insufficient Charge Warning alerts when reserves are low

• Energy Saving Function conserves power in darkness

• Time Difference Correction enables seamless hour adjustment

• Instant Date Change ensures precise midnight transition

• Perpetual Calendar automatically adjusts for varying month lengths and leap years

Each The CITIZEN timepiece is assembled in a dedicated workshop in Nagano, Japan, under the supervision of master craftsmen known as Meisters, ensuring both technical integrity and refined execution.

The 38.3mm case is crafted from Super Titanium™, a proprietary material significantly lighter and more scratch resistant than stainless steel. A dual spherical sapphire crystal protects the deep blue dial, whose applied indices and precisely finished hands reflect measured restraint and technical clarity.

The watch is fitted with a blue crocodile leather strap, secured by a deployment buckle with push-button release, offering both refined aesthetics and secure comfort on the wrist.

The AQ4100-22L is not a conventional quartz watch. It is a regulated solar precision instrument engineered for autonomy, temperature stability, and enduring performance.

Technical Specifications

Model: AQ4100-22L
Collection: The CITIZEN

Movement & Regulation

Calibre: Eco-Drive A060 (Solar Powered)
Accuracy: ±5 seconds per year
Power Reserve: Approximately 1.5 years when fully charged

Crystal Oscillator Selection:
Only rigorously tested oscillators are selected following a six-month stability observation period.

Temperature Compensation System:
Internal temperature measured 1,440 times daily and automatically compensated in 0.1-degree increments.

Solar Energy Conversion:
Continuously converts light into stored energy — no battery replacement required.

Stability & Intelligent Functions

Power Reserve Indicator
Overcharging Prevention Function
Insufficient Charge Warning Function
Energy Saving Function
Shock Detection System
Automatic Hand Position Adjustment
Time Difference Correction
Instant Date Change
Perpetual Calendar

Case & Construction

Case Size: 38.3 mm
Material: Super Titanium™
Crystal: Dual Spherical Sapphire Crystal
Dial: Blue with applied indices
Strap: Blue Crocodile Leather Strap
Clasp: Deployment Buckle with Push-Button Release
Water Resistance: WR100 / 10Bar / 333ft

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