The Citizen AQ4106-00A from The CITIZEN collection represents the disciplined pursuit of measurable precision. This is not simply a solar quartz watch — it is a high-accuracy instrument engineered through regulation, observation, and continuous correction.

At its core operates the Eco-Drive Calibre A060, individually regulated to achieve an extraordinary ±5 seconds per year. This performance begins with the selection of only the most stable crystal oscillators. Each oscillator undergoes a six-month observation period to verify long-term consistency before being approved for assembly. Even after casing, the movement is retested to ensure it meets Citizen’s uncompromising performance standards.

Accuracy is further protected by an advanced temperature compensation system. Internal temperature is measured 1,440 times per day in 0.1-degree increments, allowing the movement to automatically adjust in real time. Because temperature fluctuations are one of the primary variables affecting quartz performance, this continuous analysis ensures environmental changes never compromise precision.

Citizen’s Eco-Drive technology continuously converts natural or artificial light into stored energy, eliminating battery replacement while maintaining operational autonomy. When fully charged, the movement provides approximately 1.5 years of continuous operation, even without further exposure to light.

Beyond regulation and energy efficiency, the A060 integrates intelligent stability systems engineered to preserve long-term accuracy:

• Shock Detection safeguards internal stability following impact.

• Automatic Hand Position Adjustment continuously monitors and corrects hand alignment.

• Overcharging Prevention protects the circuit from excessive energy accumulation.

• Insufficient Charge Warning alerts the wearer when energy reserves are low.

• Energy Saving Function conserves power when not exposed to light.

• Time Difference Correction enables rapid hour adjustment without interrupting movement.

• Instant Date Change ensures precise midnight calendar 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. Their role ensures both technical integrity and refined execution.

The dial of the AQ4106-00A is crafted from traditional Japanese washi paper, historically used as a light diffuser in lanterns and sliding doors. Its long fibres allow light to pass through — powering the Eco-Drive system beneath — while creating a subtle interplay of texture and illumination across the surface. The result is a fusion of centuries-old craftsmanship and contemporary engineering precision.

The 38.3mm case is constructed from rose gold-tone Super Titanium™ with DLC coating, a proprietary material significantly lighter and more scratch-resistant than stainless steel. The DLC treatment enhances surface hardness while preserving refined finishing transitions. A dual spherical sapphire crystal protects the dial, ensuring clarity and durability.

The AQ4106-00A is a regulated solar precision instrument — engineered, temperature-corrected, observed, and assembled for enduring stability and refined authority.

Technical Specifications

Model: AQ4106-00A
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

Solar Energy Conversion:
Continuously converts natural or artificial light into stored energy, eliminating battery replacement.

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

Temperature Compensation System:
Measures internal temperature 1,440 times daily in 0.1-degree increments and automatically adjusts to maintain peak precision.

Stability & Intelligent Protection

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: Rose Gold-Tone Super Titanium™ with DLC Coating
Crystal: Dual Spherical Sapphire Crystal
Dial: White Japanese Washi Paper
Strap: Crocodile Strap with Fold Over Clasp and Push Button
Water Resistance: WR100 / 10Bar / 333ft

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