Visual Description
The Ref. 8839 is the medium Panthère in 18k yellow gold, 27 mm wide, with eight screws on the case back and a crown set with a cabochon. Bonhams describes a pale champagne dial with black Roman numerals, the secret signature at VII and the date at 3 o'clock, read by blued steel sword hands; Sotheby's catalogs a silvered dial and Finarte a cream dial with a grained finish. The case runs into a brick-link bracelet in 18k gold that closes with a signed folding clasp.
Reference Significance
The 8839 is the medium Panthère in 18k yellow gold. It matches the Ref. 887968 in size, metal and movement and differs in the number on the case back; each number keeps its own page, and no source found explains how the two relate. It is about the size of the stainless steel Ref. 1310 and the steel and gold Ref. 183949 and Ref. 1100, and larger than the 22 × 30 mm small gold Ref. 8669.
Historical Context
Bonhams and Sotheby's each date an 8839 to about 1990, and Finarte catalogs another as from the 1990s. Sotheby's names the movement as the Cartier Cal. 83 quartz with 9 jewels; Bonhams gives 9 jewels as well. No source found gives a first or last year for the reference.
What to Look For
Read the case back for 8839 and a serial; some houses print the two run together as one long number beginning 8839. The gold bracelet should have all its links and a folding clasp that closes firmly. Check that the date changes at 3 o'clock, that the Roman numerals are clean and the hands blued, and that the quartz movement runs. Measure the case, and keep any papers, which help place a particular watch within the run.

