I wanted to add a few facts about the Citizen AW1018-55E sold by Amazon.

Size - in CURRENT men's fashion this might be considered a "mid-size" watch at 43mm across.  I emphasized the word current above because watches in general are much larger than they were a generation ago.  But in an era where Invicta and other companies routinely sell watches of 50mm and larger, 43mm is currently a "mid-size."  I would also note that this is a thin watch compared to some of the larger chronographs currently on the market.

Weight - here are the weights of some new and older watches I currently own:
  Citizen AW1018-55E - 138g, 4.9oz (this watch)
&nbsp;<a data-hook="product-link-linked" class="a-link-normal" href="/Citizen-Eco-Drive-Calibre-2100-Watch-AV0031-59A/dp/B000EQTXXA/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">Citizen Eco Drive Calibre 2100 Watch (AV0031-59A)</a>&nbsp;- 192g, 6.7oz
&nbsp;<a data-hook="product-link-linked" class="a-link-normal" href="/Seiko-Men-s-SKA201-Arctura-Kinetic-Watch/dp/B00068TK84/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">Seiko Men's SKA201 Arctura Kinetic Watch</a>&nbsp;- 172g, 6.1oz
&nbsp;<a data-hook="product-link-linked" class="a-link-normal" href="/Casio-Men-s-G9100-1-G-Shock-Gulfman-Watch/dp/B000UV2ZQ6/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">Casio Men's G9100-1 G-Shock Gulfman Watch</a>&nbsp;- 58g, 2.0oz
  Older small (35mm?) Seiko chronograph - 74g, 2.6oz
So calling this watch "heavy" totally depends on what you are comparing it to.  Compared to my older small watches and the resin Casio it certainly is heavy, but compared to the chunky chronographs I have worn recently it feels fairly light, with the band being particularly light weight.

Color - the picture of the AW1018-55E doesn't accurately depict the watch, IMHO.  In reality, the entire watch is black - but the inner 3/4 of the band and most of the watch case is a flat black finish while the outer part of the band and some bits of the case near the crown are a glossy finish.  I personally would have preferred the entire watch to be a flat black, but I'm still quite happy with how the watch looks.

(Edit - I've now added a picture to illustrate the color / finish of the watch a bit better than the stock photo does.)

My take - for a modern watch this is relatively lightweight, sleek, and handsome.  It's a great alternative to a chronograph if you want a classic less cluttered look.  My only concern is how well the black finish will wear over time, but as of now I'm very happy with this watch.

Edit December 2013 - over time the black "ion" finish has begun to wear, esp. on the snap closure.  I still like the watch, and I expected some wear eventually, but the amount of wear on the snap has surprised me.