Rolex
Rolex Day-Date 40 228238
The Rolex Day-Date 40 (reference 228238) is a 40 mm 18k yellow gold watch. It runs on the automatic caliber 3255 with a 70-hour power reserve and is water resistant to 100 m. It was introduced in 2015 and is still in production.
Specifications
Case
- Reference
- 228238
- Collection
- Day-Date
- Case size
- 40 mm
- Thickness
- 12 mm
- Case material
- 18k yellow gold
- Case shape
- Round
- Crystal
- Sapphire
- Water resistance
- 100 m
- Bracelet / strap
- President, 18k yellow gold bracelet
Dial and bezel
- Bezel
- 18k yellow gold fluted bezel
Movement
- Movement
- Automatic
- Caliber
- 3255
- Power reserve
- 70 hours
- Frequency
- 28,800 vph
- Jewels
- 31
- Functions
- Day-date
Production
- Production
- 2015 – today (current)
Dial versions
This reference was made with these dials and finishes.
228238 Black
228238-0007
Black
228238 Black Baguette-cut diamond indexes
228238-0004
Baguette-cut diamond indexes · Diamond; Baguette; Dial indexes; count/carats not published in source
228238 Black Onyx
228238-0059
Onyx
228238 Champagne
228238-0003
Champagne
228238 Champagne Roman numerals
228238-0006
Roman numerals
228238 Champagne Baguette-cut diamond indexes
228238-0005
Baguette-cut diamond indexes · Diamond; Baguette; Dial indexes; count/carats not published in source
228238 Diamond-paved
228238-0054
Paved diamond dial · Diamond; Dial (paved); count/carats not published in source
228238 Green Ombre
228238-0069
Ombre
228238 Green Roman numerals
228238-0061
Roman numerals
228238 Mother-of-Pearl
228238-0071
Mother-of-pearl; Baguette-cut diamond indexes · Diamond; Baguette; Dial indexes; count/carats not published in source
228238 Silver
228238-0066
Silver
228238 Silver Diagonal motif
228238-0008
Diagonal motif
228238 Silver Roman numerals
228238-0002
Roman numerals
228238 White
228238-0042
Roman numerals
How it compares within the Day-Date family
Side by side with other references in the same collection, from the catalog.
| Reference | Size | Material | Dial | Caliber | Years |
|---|---|---|---|---|---|
| 228238 (This watch) | 40 mm | 18k yellow gold | — | 3255 | 2015– |
| 128235 | 36 mm | 18k Everose gold | Chocolate / Sundust / various | 3255 | 2019– |
| 128238 | 36 mm | 18k yellow gold | Champagne / Green / Silver / various | 3255 | 2019– |
| 128239 | 36 mm | 18k white gold | — | 3255 | 2019– |
| 128348RBR | 36 mm | 18 kt Yellow Gold | — | 3255 | — |
| 128398TBR | 36 mm | 18 kt Yellow Gold | Bright Green | 3255 | — |
| 228206 | 40 mm | 950 platinum | Ice blue | 3255 | 2015– |
| 228235 | 40 mm | 18k Everose gold | — | 3255 | 2015– |
| 228239 | 40 mm | 18k white gold | — | 3255 | 2015– |
About the Day-Date family
The Day-Date was introduced in 1956 as the first wristwatch to show the day of the week spelled out in full, in a window at 12 o'clock, alongside the date. It has only ever been made in precious metal, 18k gold or platinum, and is usually worn on the President bracelet created for it.
Generations are told apart by reference and movement: the quickset references of the late 1970s and 1980s, the 18238 and 118238 with caliber 3155, then the Day-Date 40 (for example ref. 228238) from 2015 and the Day-Date 36 (for example ref. 128238) from 2019, both with caliber 3255. Dials range from plain colours to stone, meteorite and diamond-set versions, and the day disc can be in many languages. Dealers check that dial, bezel and bracelet are original to the watch.
Quick answers
- What size is the Rolex Day-Date 40 228238?
- The Rolex Day-Date 40 228238 has a 40 mm case, 12 mm thick.
- What movement does the Rolex Day-Date 40 228238 use?
- It uses the automatic caliber 3255, with a 70-hour power reserve.
- How water resistant is the Rolex Day-Date 40 228238?
- It is water resistant to 100 metres.
- Is the Rolex Day-Date 40 228238 still in production?
- Yes, it is a current reference.
- When did the Rolex Day-Date 40 228238 come out?
- It was introduced in 2015.
- What is the Rolex Day-Date 40 228238 made of?
- The case is 18k yellow gold. Bracelet or strap: President, 18k yellow gold bracelet.
- Which dials was the Rolex Day-Date 40 228238 made with?
- The catalog lists 7 dials: Black, Champagne, Diamond-paved, Green, Mother-of-Pearl, Silver, White.
Catalog facts checked October 2026.