Omega Constellation, 1968
An understated mid-century classic; conservative, but goes with everything. In that regard it reminds me of another classic of the same era, the IWC Ingenieur - subtle and un-flashy, but perfectly crafted. Features the 564 movement, one of Omega's finest. The brown/black sharkskin strap and stainless buckle are both Omega-signed and original to the watch.
Sadly I had to sell this one off in early 2011 to fund another purchase.