ORIGINAL ANTIQUE OMEGA TRANSITION/TRENCH WRIST WATCH, ENAMEL DIAL, Circa 1931, CALIBER OMEGA  23.7 S.T2 
 
DIAL: Original white color enamel (porcelain) dial with black color arabig numbers. Dial is signed OMEGA at twelve. Subseconds dial placed at six. Blue metal hands. Dial is in excellent conditions, no dings, cracs or hairlines anywhere, please refer to the pictures.
 
CASE:  original yelllow gold filled case with HINGED back cover which is fully numbered and signed by OMEGA WATCH Co. Fixed spring lugs. Case is in very good condition; there is a bit of gold plating missing on its back cover, just under the winding crown, so I assume it is because of winding up the watch. Please, refer to the pictures.

MOVEMENT: original  mechanical with MANUAL winding movement, fully signed & numbered by OMEGA WATCH Co. It is a rare Omega Caliber 23.7 S.T2
 
WORKING ORDER: Yes, it is in runnig conditions (not checked for accuracy).
 
MEASURES: 28mm WIDE including winding crown, 26mm diameter without crown, 30mm lug to lug.
 
AGE:  1931

BRACELET/STRAP:  12mm black color vintage used leather strap with gold tone buckle.

CONDITIONS: very good general conditions, please refer to the detailed pictures.