A lady's Art Deco diamond wristwatch, by J.E. Caldwell & Co.

A lady's Art Deco diamond wristwatch, by J.E. Caldwell & Co.
The circular silvered dial with Arabic numerals and blued steel hand, set within a single-cut diamond-set openwork asymmetrical foliate surround, to an adjustable milanese bracelet, the back inscribed 'MAK', mechanical movement, case 20mm wide
Dial signed J.E. Caldwell & Co.