Rolex Datejust 31
34 % 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
Lift angle 52° — important for timing-machine diagnosis: with this value a watchmaker can correctly measure rate deviation, amplitude and beat error. ChronoCheck verifies such technical details directly from the manufacturers' factory specifications.
Rolex Ref. 278383RBR — Variants and collector names
Known as: DJ31 Yellow Rolesor Diamond Bezel, Datejust 31 Two-Tone Diamond Bezel
Movement variants
- 2236 (2020–today) · 28800 bph
Bezel variants
- 278383RBR Diamond Bezel YG "Diamond Bezel Yellow Gold"
Dial variants
- 278383RBR-0001-White-Roman — Roman numerals in 18k yellow gold / DATEJUST
- 278383RBR-0003-Silver-Roman-Diamond — Roman numerals / diamond-set hour indexes on silver dial
- 278383RBR-0015-Olive-Roman — Roman numerals in 18k yellow gold on olive green sunburst dial
- 278383RBR-0017-Grey-Roman — Roman numerals in 18k yellow gold on grey sunburst dial
- 278383RBR-0019-Silver-Diamond-Index — Diamond-set baton indexes on silver dial
- 278383RBR-0021-Grey-Diamond-Index — Diamond-set baton indexes on dark grey sunburst dial
- 278383RBR-0023-Black-MOP-Diamond — Diamond-set indexes on black mother-of-pearl dial
- 278383RBR-0025-Champagne-Diamond-Index — Diamond-set baton indexes on champagne sunburst dial
- 278383RBR-0028-MOP-Diamond-Index — Diamond-set indexes on white mother-of-pearl dial
- 278383RBR-0030-Olive-Diamond-Index — Diamond-set baton indices on olive green sunburst dial
- Olive Floral — Floral motif with diamond decoration on olive green dial
Crystal variants
- Sapphire-Cyclops 31mm
Bracelet variants
- Jubilee – Five-Piece Link Ref. Jubilee-Yellow-Rolesor-5Link
- Oyster – Three-Piece Solid Links Ref. Oyster-Yellow-Rolesor-3Link
Reference 278383RBR pairs two-tone Yellow Rolesor with a diamond-set bezel in 18-carat yellow gold. Under the hood sits Calibre 2236 — a movement Rolex developed in 2015 specifically for its ladies' collections, beating at 28,800 vph. Eleven official dial options are on the menu, from the white Roman numeral dial to the Olive Floral motif.
## Why Dial Choice Drives Resale Value
On the pre-owned market, the spread between a white Roman-numeral dial and the Olive Floral motif can easily run 800 to 1,200 euros. The black mother-of-pearl dial (0023) has drawn the strongest collector demand since 2022 — black MOP with diamond indices is in short supply and rarely comes up in well-preserved condition. Champagne dials, by contrast, surface far more often and trade tightly around the street-price line.
## What Keeps the Price Up
The diamond bezel is set with 46 brilliant-cut stones and factory-sealed — any re-setting is immediately obvious and can shave as much as 15 percent off resale value. Calibre 2236 runs a Parachrom blue hairspring that is 10 times more resistant to magnetic fields than the steel lever found in older Datejust generations. In full original trim with a complete set and service history, a well-kept 278383RBR currently trades between 9,800 and 13,500 euros, depending on dial rarity.
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
Market situation and price range
At $28,881 the Datejust 31 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 56.8 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 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.
- 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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