This is a very nice watch in quality and design. Beautiful classic old style look. I really like the watch face with the Arabic style numerals and the filigree hands. The one pictured has the ESS logo on it. Mine doesn't have this and I'm glad. I think it detracts from the look. It looks more authentic without it.

  I like the amber front, but I don't care for the jewel like facets. I would have preferred the front cover to be smooth, because unless you look straight at it, the facets distort and double vision the numbers. Plus I think without them, it would allow greater attention to the nicest feature of watch, the face itself. The amber front is glass and the dial crystal is acrylic.

  The watch is 1-3/4 inches wide; feels just about the right size in my hand. The build quality is pretty substantial. It's not rock solid like the old pocket watch my dad gave me years ago. But I'm satisfied with it. Not too big and clunky in my pocket. The chain and clip are well made with a total length of 13 inches. The watch movement inside is Tiny, like dime size. I got it 2 weeks ago and set it to the second by my computers clock. In 2 weeks it gained 3 seconds, not too bad. There are similar watches on amazon with great reviews for more than I paid for this one. But I believe that I got a great deal, for a beautiful watch.

There are directions for changing the battery in this watch, or a similar one in the comments.

***The watch came with an extra battery in a little plastic bag. Mine had leaked a greenish black goo, so obviously, it's no good. The battery is tiny, but I was able to read on it that it is an LR626 alkaline battery. The battery in my watch is a silver oxide battery, and they last 3 times longer than alkaline. If your extra one is this LR626, may be wise to toss it & get the silver oxide. The battery # for some alkalines is SR626SW.

Amazon has the correct energizer silver oxide #377/376 for $2.15 for a 2 pack & $2.63 for a 5 pack, both with free shipping. Here are the links for  anyone interested.  My review is long, but I hope someone finds it helpful in making a buying decision.

--->&nbsp;<a data-hook="product-link-linked" class="a-link-normal" href="/Energizer-377-376-1-5v-377-376-Watch-Calculator-Battery-5-Pack/dp/B0014WPV2K/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">Energizer 377-376 1.5v #377/376 Watch/Calculator Battery (5 Pack)</a>
  --->&nbsp;<a data-hook="product-link-linked" class="a-link-normal" href="/Energizer-Silver-Oxide-Blister-Pack-Watch-Electronic-Batteries-2-pack/dp/B001G7PJ2A/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">Energizer Silver Oxide Blister Pack Watch/Electronic Batteries, 2 pack</a>