How does Eco-Drive work?

A solar cell under the dial charges a rechargeable cell that powers the quartz movement. Regular exposure to light keeps it running, so it never needs a battery replacement.

Is it safe to swim with?

Yes. It is rated water-resistant to 100 meters, which covers swimming and snorkeling. Do not press the chronograph pushers or turn the bezel underwater.

How does it compare with a Seiko chronograph?

It adds sapphire crystal and solar charging, which many Seiko chronographs in the same class lack. Seiko offers more mechanical and solar chronograph options, but often with mineral glass.

Is the 43mm case too big?

It wears large and suits wrists around 7 inches or more. Smaller wrists may find it top-heavy, so try it on if you can.

The watch on its strap, a presentation box and a manual. The strap is a black leather or polyurethane band depending on the version.

Does the chronograph measure fractions of a second?

The sub-dials handle chronograph minutes and seconds plus running seconds. It is a standard 1-second chronograph, not a high-frequency split-second timer.