A LADY'S GOLD "TUBOGAS" WRISTWATCH, BULGARI

Details
A LADY'S GOLD "TUBOGAS" WRISTWATCH, BULGARI
The circular black-colored dial with gold abstract and Arabic chapters and hands, within an engraved 18K gold frame, attached to an 18K gold spring band
Signed by Bulgari, Nos. BB 19 2T, P.52683
Literature
For an illustration of a similar wristwatch see:

D. Mascetti and A. Triossi, "Bulgari", Abbeville Press, New York, 1996, p.156