This is an incredible and attractive vintage Omega Chronograph watch. The watch works excellently (just serviced), and all chronograph features work correctly. The manual wind chronograph movement is an Omega calibre 27CHRO 12CH (aka. 321) with 17 jewels—the movement serial number dates this watch to 1942 (making this piece one of the earliest of its kind when Omega first introduced the 321 movement)—unpolished solid stainless steel case in excellent condition. The case measures 35mm across, excluding the crown by 42mm from lug tip to lug tip. The case model is 2279. The acrylic crystal is new, covering a stunning original factory finish dial. It will come with a new 18mm high quality handmade genuine leather strap. The wrist size in the photo is 6 inches.