Citizen Mens Analogue Quartz Watch CA0700-86E (Black Dial, Silver Band)

How does the Eco-Drive technology work and how long does it last?

The Eco-Drive technology converts any light source into electrical energy to power the watch. Once fully charged, it can run for approximately 6 months in complete darkness. The rechargeable cell is designed to last for decades without replacement, making it an environmentally friendly alternative to traditional battery-powered watches.

What makes Super Titanium different from regular titanium or steel?

Super Titanium undergoes Citizen's proprietary surface hardening treatment called Duratect, making it five times harder than stainless steel. This process creates a surface that resists scratches, maintains its appearance longer and provides superior durability whilst remaining 40% lighter than steel. The material is also hypoallergenic and corrosion-resistant.

Is the sapphire crystal glass completely scratchproof?

Sapphire crystal ranks 9 on the Mohs hardness scale, making it highly scratch-resistant but not completely scratchproof. Only diamond (hardness 10) and other sapphire materials can scratch it. In practical daily use, sapphire crystal will resist scratches from keys, coins and most common materials, maintaining crystal clarity for years.

Can I wear this watch whilst swimming and diving?

Yes, with 100 metres water resistance (10 bar), this watch is suitable for swimming, snorkelling and recreational diving. However, it's not recommended for deep-sea diving or high-impact water sports. The water resistance is tested under laboratory conditions and actual performance may vary with age and wear.

How bright are the luminous hands and how long do they glow?

The luminous coating on the hands and markers charges quickly under any light source and provides clear visibility for several hours in darkness. The brightness gradually fades over time, with strongest luminosity in the first hour after light exposure. The phosphorescent material will continue to function effectively for many years.

What is the accuracy of the quartz movement?

The Japanese quartz movement typically maintains accuracy within ±15 seconds per month under normal conditions. Temperature extremes, magnetic fields and physical shocks can affect accuracy. For optimal performance, avoid exposure to strong magnetic fields from speakers, mobile phones, or magnetic clasps.

How do I adjust the fold-over clasp for proper fit?

The fold-over clasp features micro-adjustment holes that allow fine-tuning of the bracelet length. Push the buttons on either side to release the clasp, then adjust the position using the holes for a comfortable fit. The clasp should sit snugly but not tightly, allowing slight movement on your wrist.

Does this watch require any special maintenance or servicing?

The Eco-Drive technology eliminates battery replacement needs, but periodic professional servicing every 5-7 years is recommended to maintain water resistance and movement accuracy. Keep the watch clean with a soft cloth, avoid extreme temperatures and ensure the solar panel (dial) receives regular light exposure for optimal performance.