Ball Trainmaster Cannonball Express Automatic Chronograph model CM1052D in stainless steel circa 2014 with screw down crown, hack feature and miniature tritium luminous bulbs on the hands and dial that brightly illuminate in dark. The watch was designed after one of their famous Ball pocket watches from the late 1800s to early 1900s. It has a sapphire crystal, a two tone dial, blued hands and a display back. It comes on the signed quality Ball bracelet and fits comfortably on a 18.5 cm (7.25 inch) wrist. This is a very high quality Ball watch, one look at the case, dial, hands and embellished movement will reveal that. The watch is working flawlessly as it should and is in very good physical condition and appears to have had little wrist time. Case measures 43 mm not including crown or pushers.