How does Eco-Drive work?

A solar cell under the dial turns light into power and stores it in a rechargeable cell. With regular exposure to light it keeps running without battery changes, and it can hold a charge for months in the dark.

Is titanium better than steel here?

Super Titanium is significantly lighter, so a large chronograph stays comfortable all day. It is also treated for scratch resistance, though it can still show scuffs and its finish differs from polished steel.

Is the green dial easy to read?

The green dial with contrasting hands and markers reads clearly in most light. Legibility in low light depends on the luminescence on the hands and markers.

Check the caseback water-resistance rating before swimming. A chronograph with push buttons should not have those buttons pressed underwater regardless of rating.

The watch, its titanium bracelet and Citizen's documentation. The box contents and paperwork language can vary by seller.

How does it compare with a mechanical chronograph?

It is more accurate and needs no winding or battery service, but it lacks the sweeping seconds hand and servicing ritual of a mechanical watch. It is the lower-maintenance choice.