Does the Eco-Drive L Sunrise need a battery?

No. The solar cell under the dial charges from sunlight or indoor light and stores power in a capacitor, so there is no battery to replace.

How does it compare with an automatic dress watch?

It is thinner and lighter and never needs winding, but it has a quartz tick rather than a sweeping seconds hand and no exhibition caseback.

It is rated to 50 meters, which covers hand washing and brief immersion. It is not a dive watch, so avoid swimming and showering with it.

The case is about 30 mm across, a small, slim size aimed at women's wrists. Check the lug width if you plan to swap the bracelet for a strap.

The watch on its stainless steel bracelet, a presentation box and paperwork. A strap is not included.

It uses sapphire crystal, which is highly scratch resistant. Only diamond and similar hard materials will mark it.

At Helzberg Diamonds, for $499.99, 49% off, as of our latest check.

Rated 4.8 out of 5 from 23 ratings.

7 stores we checked sell it, including eBay, NY Watch Store, Arizona Fine Time, Helzberg Diamonds, Crown Jewelers NYC.

$499.99at Helzberg DiamondsObserved at 5:17 AM

Compared across 7 stores. Prices are checked against each store and labelled with when.