This is a Vintage Gruen watch "14K Gold Reinforced" according to the back of the watch case.
It's a 15 Jewels Art Deco Ladies Mechanical Watch.
Not Running. (It's fully wound but doesn't run).
Is monogrammed on the back - MMT. Otherwise good condition cosmetically.
White Gold Color
Adjustable Band is stamped "Kreisler Dura Brite"
Does not come with a band. The case is about 9/16" (14mm) wide (not including the wind knob) by about 15/16" (23mm) long (not including the mounting lugs).