An Art Deco Platinum, Diamond and Onyx Wristwatch, C.H. Meylan for Henry Blank & Co., the bezel, lugs and strap slides containing 62 old European cut diamonds weighing approximately 0.95 carat total together with numerous French and calibre cut onyx, matte silvered dial, black Arabic numerals, blued steel moon hand, octagonal case integrated with articulated openwork lugs, intricately engraved outer band in a foliate motif, hinged case back, manual wind rhodium plated 18 jewel movement with five adjustments signed C.H. MEYLAN with the CRESARROW mark, platinum braided strap and fold-over clasp.Movement number: 40325.Stamp: Platinum (Cressarrow mark for Henry Blank & Co.) 46274. 18.00 dwts.