Rolex Datejust 31 Edelstahl Weißgold Diamant Mintgrün
54 % below RRP
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ℹ️ 1-month trend
Price change over the past 30 days. Shows the short-term market movement — relevant if you want to buy or sell soon.
ℹ️ 4-month trend
The central metric behind the momentum score. It filters out short-term swings and shows the true, medium-term market trend of this reference.
ℹ️ Volatility
Annualised price fluctuation. Below 10 % = very stable, 10–20 % = normal, above 20 % = volatile. With high volatility the price can change quickly — in both directions. Be cautious about buying without checking the current price.
ℹ️ Momentum score
ChronoCheck's own indicator from 0 to 100, calculated from the 4-month trend, volatility and market direction.
- Above 60 — Upward trend. Good time to sell, prices are rising.
- 40 – 60 — Neutral. Stable price level, no pressure to act.
- Below 40 — Downward trend. Wait or enter at a good price.
ℹ️ Investment Grade A/B/C/D
ChronoCheck's own rating for each reference. A 0–100 point scale, made up of four weighted components:
- Momentum (40 pts) — trend strength from the momentum score.
- Liquidity (25 pts) — number of active live listings.
- Stability (20 pts) — inverse volatility — the calmer, the better.
- Source robustness (15 pts) — number of independent market sources.
- A · 75+ Trend is right, liquidity good, data broad.
- B · 55–74 Solid, but one component weaker.
- C · 35–54 Average, volatility or market breadth weigh on it.
- D · below 35 Downward or too little data — a collector's piece.
Not investment advice. Pure data analysis from aggregated market sources.
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Technical data
Rolex Ref. 278344RBR — Variants and collector names
Known as: Datejust 31 White Rolesor Diamond, DJ31 Diamond Bezel, Rolesor Diamond 31mm
Production phases and changes
- 2015: Reference 278344RBR introduced as part of 2015 Datejust 31 refresh
Movement variants
- 2236 (?–today) · 28800 bph
Bezel variants
- 128348RBR Diamond-Set Bezel "Factory Diamond Bezel"
Dial variants
- Azzurro Blue Floral Diamond Dial — Azzurro blue floral motif dial with diamond hour markers
- Black Roman Dial — Roman numerals with Chromalight luminescence
- Blue Roman Dial — Blue Roman numeral dial
- Dark Rhodium Diamond Dial — Dark rhodium dial with diamond hour markers
- Dark Rhodium Roman Dial — Dark rhodium dial with Roman numerals
- Mint Green Dial — Mint green dial
- Pink Stick Dial — Pink dial with stick index markers
- Pink Sunray Roman Dial — Pink sunray dial with Roman numerals
- White MOP Diamond Markers — White MOP dial with diamond hour markers
- White Roman Dial — White dial with Roman numerals
Crystal variants
- Sapphire Flat with Cyclops
Bracelet variants
- Oyster three-piece solid links Ref. Oyster
- Jubilee 5-Link Ref. Jubilee
Serial numbers
- ? – ? (2010–?) — Rolex transitioned to randomized serial numbers in 2010, making year determination challenging without additional documentation. 278344RBR watches from 2015-present use randomized serials located on bezel rehaut.
278344RBR — the reference number and suffix alone tell you what you're looking at: a Rolesor case, 31 millimeters, diamond bezel. The reference launched in 2015 as part of the full Datejust 31 refresh, with a redesigned case and slimmer lug shoulders. But the real news was on the inside: caliber 2236, Rolex's first ladies' movement with a Syloxi hairspring and 55 hours of power reserve. Power reserve on this caliber type used to sit well below that, a jump many owners notice immediately in daily wear.
## Ten Dials, One Case
What sets the 278344RBR apart is the sheer range of dial variants. Black and white with Roman numerals are the classic entry points, while Pink Sunray and Dark Rhodium offer a more understated alternative. For those who want more presence, there's Azzurro Blue Floral with diamond hour markers or the Mint Green dial, which has been steadily building collector interest since 2015. White mother-of-pearl with diamond markers and Dark Rhodium with diamonds round out the two mother-of-pearl variants, each carrying its own collector nickname in the trade. In my day-to-day work, three names keep coming up: DJ31 Diamond Bezel, Rolesor Diamond 31mm, and Datejust 31 White Rolesor Diamond — all three referring to the same reference.
## The Bezel as the Signature Feature
The factory diamond bezel, often listed in the trade under the name 128348RBR Diamond-Set Bezel, is the detail buyers spot the reference by instantly. On pre-owned pieces especially, it's worth taking a close look at how the stones are set, since aftermarket bezel swaps are far from rare on diamond-set models.
Looking to buy or sell a 278344RBR? ChronoCheck delivers the current market valuation, dial variant included, at chronocheck.de/marktwert/rolex/278344rbr.
Brand profile: Rolex
Rolex is the most counterfeited watch brand in the world. Super-clones (VSF, ARF, Clean — the latter inactive since the 07/2025 raid, with only old stock still circulating) reach 95%+ similarity. Authenticity can almost always only be identified through micro-details and caliber behavior.
- Case back: ALWAYS solid and closed — any display window means it's definitely fake (exception: vintage Ref. 6085 only)
- Minute hand length: genuine Rolex minute hands end EXACTLY at the minute chapter ring. 1 mm too long = fake. The strongest VSF tell.
- Seconds hand: smooth sweep without any hesitation — the slightest tick-tock motion means it's fake
- Cyclops lens (on Date models): must magnify exactly 2.5×, with the date filling almost the entire window
Serial number format: Since 2010, a random alphanumeric combination (e.g. 'G3M9K721'). 2000-2010: a letter plus 6-7 digits. Serial number engraved on the rehaut at 6 o'clock (from ~2005). Older models: between the lug shoulders at 6 o'clock on the case.
Further sources
Buying guide: Rolex Datejust 31 Edelstahl Weißgold Diamant Mintgrün
Market situation and price range
At $17,258 the Datejust 31 Edelstahl Weißgold Diamant Mintgrün sits in a segment where first owners sell regularly — clean pieces with box and papers are not uncommon. The jump from "good" to "very good" usually costs 1,000 to 2,000 euros more at purchase. You get that premium back on resale if the condition is preserved.
Watch out for swings: This reference has an above-average volatility of 32.3 percent. In concrete terms: the price can move by several hundred euros within a few weeks. Check the current value before buying or selling — old listings or auction results from two months ago are of little help.
What to look out for when buying?
- Authenticity: The serial number and reference on the case must match the papers. A professional authenticity check of the Rolex Datejust 31 Edelstahl Weißgold Diamant Mintgrün reliably rules out counterfeits.
- Condition: Check scratches on the case and bezel — professional refurbishment can leave traces.
- Service history: A documented service by the manufacturer or a certified watchmaker increases the value.
- Scope of delivery: Box, papers and warranty card make a noticeable price difference on the Datejust 31 Edelstahl Weißgold Diamant Mintgrün.
- Independent certification: The CPS-52 standard covers 52 checkpoints — from the serial number and the timing machine to water resistance. The result is secured on the blockchain and can be verified at any time.
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