The Lady-Datejust Platform
28mm is Rolex's dedicated women's case size — used exclusively for the Lady-Datejust collection (references 279xxx series). The Lady-Datejust was introduced in 1957 as the women's counterpart to the men's Datejust — same design language, same cyclops date window, same Oyster case construction, scaled to a smaller wrist. The current-generation Lady-Datejust uses the caliber 2236 movement with a Syloxi silicon hairspring — Rolex's most advanced women's movement, rated to Superlative Chronometer standards (-2/+2 seconds per day). The 28mm case is proportionally identical to the 36mm Datejust (same bezel width relative to case, same crown size, same dial layout) — it is a faithful scale reduction, not a simplified miniature.
Lady-Datejust vs. Datejust 31
Rolex offers two women's Datejust sizes: the 28mm Lady-Datejust and the 31mm Datejust. The 28mm is the more traditional women's size — delicate, jewelry-like, with a simplified dial layout (fewer hour markers, smaller cyclops). The 31mm is the more modern women's size — bolder, with the full men's dial layout (12 hour markers, standard cyclops). Women with wrists under 5.5" typically prefer 28mm; women with wrists 5.5–6.5" can wear either size. The 28mm is more popular as a gift purchase; the 31mm is more popular as a self-purchase.
Pre-Owned Pricing Guide
| Model | Retail (approx.) | Pre-Owned Range | Savings |
|---|---|---|---|
| Lady-DJ 28 Steel/WG (279174) | $8,250 | $4,000–$6,000 | 27–52% |
| Lady-DJ 28 Two-Tone (279173) | $10,600 | $5,000–$7,500 | 29–53% |
| Lady-DJ 28 Yellow Gold (279178) | $27,500 | $11,000–$18,000 | 35–60% |
| Lady-DJ 28 RBR (279138RBR) | $15,800 | $7,500–$11,000 | 30–52% |
Frequently Asked Questions
Q: Is 28mm too small?
A: 28mm is the standard women's watch size across the luxury industry — Cartier Tank, Patek Twenty-4, and Omega Constellation all use 26–30mm as their women's platform. It is not "too small" — it is the correct proportion for most women's wrists.
Q: Lady-Datejust or Datejust 31?
A: The 28mm Lady-Datejust is the more elegant, more traditional choice. The 31mm Datejust is the more modern, more substantial choice. If the watch is a gift and you are unsure of the recipient's preference, 28mm is the safer option.
Sell or Trade Your 28mm Rolex
Our specialists provide transparent valuations for every 28mm Lady-Datejust reference. Walk into our 47th Street showroom for an immediate appraisal, or use our fully insured Parcel Pro shipping label for a remote evaluation with same-day payment. Given the high concentration of value in a compact timepiece, owners may benefit from specialized watch insurance coverage that reflects the full replacement cost.
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