Rolex
Rolex Lady-Datejust 28 279138RBR
The Rolex Lady-Datejust 28 (reference 279138RBR) is a 28 mm yellow gold watch. It runs on the automatic caliber 2236 with a 55-hour power reserve and is water resistant to 100 m.
Specifications
Case
- Reference
- 279138RBR
- Collection
- Datejust
- Case size
- 28 mm
- Case material
- Yellow gold
- Case shape
- Round
- Crystal
- Sapphire
- Water resistance
- 100 m
- Bracelet / strap
- Yellow gold
Dial and bezel
- Bezel
- Diamond-set
Movement
- Movement
- Automatic
- Caliber
- 2236
- Power reserve
- 55 hours
- Frequency
- 28,800 vph
- Functions
- Date
Dial versions
This reference was made with these dials and finishes.
279138RBR Champagne Diamond-set indexes
279138RBR-0006
Diamond-set indexes · Diamond; Brilliant; Bezel (44 stones per rolex.com); Diamond; Dial (indexes in gold settings; count not confirmed)
279138RBR Champagne
279138RBR-0013
Champagne · Diamond; Brilliant; Bezel (44 stones per rolex.com)
279138RBR Champagne Roman numerals
279138RBR-0021
Roman numerals · Diamond; Brilliant; Bezel (44 stones per rolex.com)
279138RBR Cornflower
279138RBR-0008
Diamond-set indexes · Diamond; Brilliant; Bezel (44 stones per rolex.com); Diamond; Dial (indexes in gold settings; count not confirmed)
279138RBR Green
279138RBR-0026
Diamond-set indexes · Diamond; Brilliant; Bezel (44 stones per rolex.com); Diamond; Dial (indexes in gold settings; count not confirmed)
279138RBR Lavender
279138RBR-0028
Diamond-set indexes · Diamond; Brilliant; Bezel (44 stones per rolex.com); Diamond; Dial (indexes in gold settings; count not confirmed)
279138RBR Lilac
279138RBR-0011
Diamond-set indexes · Diamond; Brilliant; Bezel (44 stones per rolex.com); Diamond; Dial (indexes in gold settings; count not confirmed)
279138RBR Linden
279138RBR-0003
Diamond-set indexes · Diamond; Brilliant; Bezel (44 stones per rolex.com); Diamond; Dial (indexes in gold settings; count not confirmed)
279138RBR Silver
279138RBR-0012
Silver · Diamond; Brilliant; Bezel (44 stones per rolex.com)
279138RBR Silver Diamond-set indexes
279138RBR-0001
Diamond-set indexes · Diamond; Brilliant; Bezel (44 stones per rolex.com); Diamond; Dial (indexes in gold settings; count not confirmed)
279138RBR White
279138RBR-0032
Roman numerals · Diamond; Brilliant; Bezel (44 stones per rolex.com)
279138RBR Diamond-paved
279138RBR-0030
Diamond-paved, Roman numerals · Diamond; Brilliant; Bezel (44 stones per rolex.com); Diamond; Dial (291 stones per rolex.com)
How it compares within the Datejust family
Side by side with other references in the same collection, from the catalog.
| Reference | Size | Material | Dial | Caliber | Years |
|---|---|---|---|---|---|
| 279138RBR (This watch) | 28 mm | Yellow gold | — | 2236 | — |
| 126200 | 36 mm | Oystersteel | — | 3235 | 2018– |
| 126233 | 36 mm | Yellow Rolesor (Oystersteel/18k yellow gold) | — | 3235 | 2018– |
| 126234 | 36 mm | White Rolesor (Oystersteel/18k white gold) | — | 3235 | 2018– |
| 126284RBR | 36 mm | Oystersteel / White gold | — | 3235 | — |
| 126300 | 41 mm | Oystersteel | — | 3235 | 2017– |
| 126331 | 41 mm | Everose Rolesor (Oystersteel/18k Everose gold) | — | 3235 | 2017– |
| 126333 | 41 mm | Yellow Rolesor (Oystersteel/18k yellow gold) | Champagne / Black / Silver / Blue / Wimbledon slate / various | 3235 | 2017– |
| 126334 | 41 mm | White Rolesor (Oystersteel/18k white gold) | — | 3235 | 2017– |
About the Datejust family
The Datejust appeared in 1945 as the first self-winding wristwatch to show the date in a window, together with the Jubilee bracelet designed for it. The Cyclops magnifier over the date followed in the 1950s, and the combination of fluted bezel, date window and Jubilee bracelet has stayed the model's signature ever since.
The catalog covers several generations, from caliber 3135 references to the current 3235 models: the Datejust 41, such as refs. 126300, 126331 and 126333, and the Datejust 36, such as refs. 126200, 126233 and 126234. Variants combine steel, Rolesor and gold with smooth or fluted bezels, Oyster or Jubilee bracelets and a very wide choice of dials. For dealers the exact dial, bezel and bracelet combination is what separates otherwise similar watches, so they are always described together.
Quick answers
- What size is the Rolex Lady-Datejust 28 279138RBR?
- The Rolex Lady-Datejust 28 279138RBR has a 28 mm case.
- What movement does the Rolex Lady-Datejust 28 279138RBR use?
- It uses the automatic caliber 2236, with a 55-hour power reserve.
- How water resistant is the Rolex Lady-Datejust 28 279138RBR?
- It is water resistant to 100 metres.
- What is the Rolex Lady-Datejust 28 279138RBR made of?
- The case is yellow gold. Bracelet or strap: Yellow gold.
- Which dials was the Rolex Lady-Datejust 28 279138RBR made with?
- The catalog lists 9 dials: Champagne, Cornflower, Green, Lavender, Lilac, Linden, Silver, White and more.
Catalog facts checked October 2026.