Name: Rolex Explorer II (Modern 42mm) 226570
Brand: Rolex
SKU: 226570

The Explorer II 226570 is a 42mm steel tool watch built around a fixed 24-hour bezel and a GMT hand, designed for environments where AM/PM ambiguity is a genuine problem. Available in white or black dial, it is the current-production successor to the 216570 and runs the same-generation movement as the modern Datejust and Submariner families.

What it is

The 226570 launched in 2021, replacing the 216570 which had run from 2011 with the caliber 3187. The new reference brought the caliber 3285, adding the Chronergy escapement, improved power reserve (70 hours), and better magnetic resistance. Dial options are white (polar) or black, continuing the split that has defined the Explorer II since the 1980s.

The 42mm case size, introduced on the 216570, carries over unchanged from its predecessor.

Buying notes

Check the bracelet end links for play and the clasp for wear, as pre-owned examples accumulate wrist wear quickly and a stretched bracelet is the most common deduction. Confirm the dial is original to the case: white dials should show clean printing with no yellowing or shadow text. The fixed 24-hour bezel should rotate freely for chapter-ring verification but is non-functional as a timer, so bezel condition matters only cosmetically.

Prefer examples with original crown tube intact, as 42mm cases with deep scratches at the crown-side lug are hard to restore without professional polishing that rounds the edges.

Market read

The 226570 trades near retail or at a modest premium given current authorized-dealer availability improving in many markets. White dial examples have historically commanded a slight premium over black in the secondary market, though the gap is narrow on this reference. Full-set examples with unworn bracelet links and original sticker remnants outperform watch-only sales.

Being a current-production reference, prices are sensitive to retail availability fluctuations.

Service expectations

The caliber 3285 is the current-generation Rolex movement and is built for long service intervals, with Rolex recommending approximately 10 years between services. It is too new for most pre-owned examples to require service, so a seller claiming a recent full service on a 2021-2023 example warrants scrutiny. When service is eventually needed, expect costs in the $800-1,200 range at an independent watchmaker or significantly more through Rolex service centers.

Editorial copy is AI-drafted from primary sources and reviewed by Grail Atlas before publication. Where the text is uncertain about a fact, it says so. Email corrections@grailatlas.com if something reads wrong. Signals on this page (community, OSINT) are clearly separated from the editorial sections.

Mass-produced#2 in familyOfficial press photos

Condition affects price

Pre-owned watches trade across a wide condition spectrum. These ranges are typical for the secondary market.

New Old Stock

Unworn example retaining original packaging, tags, and warranty documentation.

+30–50% vs median

Unpolished

Worn but the case has never been polished; original brushed and polished surfaces are intact.

+15–25% vs median

Polished

Case has been professionally or amateur polished at some point; edge definition is softened.

-15 to -5% vs median

Recently Serviced

Movement has been recently serviced with documented service records; case condition varies.

At median

Project

Needs service, has dial or hand issues, non-original parts, or other remediation before daily wear.

-50 to -25% vs median

Full condition grading guide →

Market price

$8,500–$11,500

steel·2026 Q2

Price trend chart coming soon

The current 42mm Explorer II sits close to retail in the secondary market, making it one of the more accessible entry points into modern Rolex sport watches.

Editorial estimate, 2026 Q2. Actual prices vary by condition, date, and box/papers status.

In-house manufacture caliber · caliber Rolex Cal. 3285: in-house automatic GMT, 28,800bph, 70h PR, 31j; Chronergy escapement, Parachrom hairspring; successor to 3185 with increased PR · 70h power reserve (2.9 days) · 3 others here share it

Medium-large: suits wrists 6.5 in+ (16.5 cm+)

42 mm case. Wears confidently on average to larger wrists. May overhang on slender builds.

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Authentication

The 226570 is a recent reference with traceable production history; the fixed 24-hour bezel and orange GMT hand at the 24-hour position are the primary authentication points.

Known issues in the market

The 226570 is recent enough that provenance is traceable; many examples have original purchase receipts and warranty cards that should be verified.
White dial variants command a premium and are more commonly misrepresented than black dial variants.
The orange 24-hour hand must point to the correct 24-hour graduation; replicas sometimes use a standard red GMT hand without proper 24-hour calibration.
Fixed ceramic 24-hour bezel is non-rotating; any bezel that rotates indicates a different reference or modification.
Jubilee bracelet was introduced as an option on the 226570; verify bracelet type matches the declared purchase configuration.

Area	What to check	What is correct	Red flag
dial	White or black dial correctness	White dial: clean lacquer white, applied hour markers, Mercedes hands with lume; Black dial: matte black lacquer, same applied markers; "Explorer II" text below 12; "Rolex Oyster Perpetual" text on both variants	Off-white or cream tint on claimed white dial; glossy black on claimed matte black; missing "Explorer II" text; printed rather than applied hour markers
hands	Orange 24-hour GMT hand	Distinctive orange arrow-tip hand; completes one rotation every 24 hours; points to correct hour position on the fixed bezel; clearly distinguishable from the standard hour hand	Red GMT hand (incorrect color); standard-speed hand completing 12-hour rotation; orange that appears painted or has chipped color near the arrow tip
case	Fixed 24-hour bezel and inscription	Fixed (non-rotating) 24-hour graduated bezel; "24 HOURS" text on bezel face; bezel does not move when gripped and turned; Oystersteel with brushed finish on bezel	Bezel that rotates in either direction; missing "24 HOURS" inscription; ceramic bezel (correct version is brushed steel); 12-hour graduation markings instead of 24-hour
case	42mm Oyster case proportions	42mm diameter; 21mm lug width; brushed center lugs with polished sides; screw-down case back; correct case thickness matching the 3285 movement height	Case under 41mm; polished-over lug sides; case thickness noticeably thinner than reference examples
movement	Cal. 3285 Chronergy GMT	Cal. 3285 with 70-hour power reserve; Chronergy escapement; independent GMT hand mechanism; "Rolex" signed rotor; date mechanism at 3 o'clock	Cal. 3285 absent; standard 3235 movement (no GMT complication); non-Rolex movement; hour-hand GMT function instead of independent GMT hand
bracelet	Oyster or Jubilee bracelet correctness	Oyster: brushed center links, polished flanks, solid end links; Jubilee: brushed center links, polished outer links, same end-link quality; clasp engraved with model and Rolex details	Hollow bracelet links; end links with visible gap to case; clasp without Rolex engraving; bracelet type that does not match the declared purchase record

Common legitimate replacements

Jubilee and Oyster bracelet options are both factory-fitted; a bracelet swap between the two is not a defect but the original bracelet type should be noted.
Rolex warranty cards and purchase receipts are available for most 226570 examples given its recent production; their absence on a claimed new or lightly-used piece warrants investigation.

Expert resources: Rolex authorized dealers can verify serial numbers against factory records for this recent reference. The r/Rolex authentication thread and WatchUSA cover 226570-specific authentication details.

Authentication guide

Last reviewed June 2026

The 226570 is the current 42mm Explorer II with Cal. 3285 and an orange 24-hour fixed-bezel hand. The 24h hand is a day/night indicator, not an independently settable GMT function -- a distinction that is frequently confused and sometimes misrepresented in listings. Authentication priorities are the orange 24h hand shade, the fixed (non-rotating) bezel, and Glidelock clasp integrity.

Known reproduction risks

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MEDIUM

Replica Explorer II 226570 watches. The Explorer II is less targeted than the GMT-Master II or Submariner, but replica versions exist at scale.

Rotating bezel on a claimed Explorer II -- the 226570 bezel is fixed with zero rotational movement; this error appears when a replica uses tooling from a GMT-Master
Orange 24h hand in the wrong shade -- too red or too yellow compared to the specific production orange
Bezel numeral font or engraving depth inconsistent with confirmed 226570 production examples
Chromalight lume glowing green (incorrect -- should glow blue)

LOW

Component substitutions from other Explorer II generations or related references.

Prior-generation (216570) 24h hand in the wrong profile for the 226570
GMT-Master red arrow hand fitted to an Explorer II case -- the profile is similar but the color is different and the hand is not geared correctly for a 24-hour rotation
Non-Glidelock clasp from an earlier Oyster generation on an otherwise genuine 226570 bracelet

Dial variants by era

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Era	Description	Identifiers
2021 to present (Polar white)	Bright white "Polar" dial with large applied hour markers. The traditional Explorer II choice and the dial most associated with the reference.	Bright white dial with large applied white-gold hour markers Orange 24-hour hand completing one rotation per 24 hours "Explorer II" text in the correct 2021 font specification Date window at 3 o'clock with Cyclops magnifier Chromalight lume (blue glow) on applied markers and hands
2021 to present (black dial)	Black dial variant. Same case and movement; different secondary market character.	Black dial with applied hour markers Same orange 24h hand as the Polar variant -- shade must be consistent Chromalight lume on markers and hands consistent with the 2021 generation

Service part flags

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Orange 24-hour hand

Original: Orange 24-hour hand that completes one rotation per 24 hours, synchronized with the hour hand. It reads against the fixed 24-hour engraved scale on the bezel. The orange of the hand should match the orange of the 24h numerals on the bezel.

Replacement tells

Hand in a different shade of orange than the bezel numerals -- the hand and bezel should read as the same orange under the same light source
Red hand from a GMT-Master fitted to the Explorer II case -- the GMT-Master red and Explorer II orange are visually similar but distinct; compare side by side
Hand that does not complete exactly one rotation per 24 hours (not settable independently like a true GMT hand)
Arrow tip proportions inconsistent with confirmed 226570 examples

Fixed 24-hour bezel

Original: The Explorer II bezel is fixed and does not rotate. It carries a 24-hour scale engraved and filled in orange numerals. No click, no movement, no rotational resistance.

Replacement tells

Bezel that rotates -- the Explorer II bezel is fixed; any rotation means the wrong bezel has been fitted (a GMT-Master or aftermarket rotating bezel)
Bezel scale with incorrect numeral spacing or font -- the engraving on the 226570 has a specific character weight
Orange fill in the numerals that is clearly different from the orange of the 24h hand

Glidelock clasp on Oyster bracelet

Original: Oyster bracelet with Glidelock clasp. The Glidelock mechanism provides 2mm incremental extension without tools. The ratchet clicks into discrete positions.

Replacement tells

Clasp without Glidelock ratchet mechanism -- simpler folding clasps are a common bracelet substitution
Ratchet that slips between positions rather than clicking cleanly
End links with visible gap against the case horns -- period-correct end links seat flush

Sapphire crystal with Cyclops

Original: Flat sapphire crystal with Rolex AR coating and 2.5x Cyclops magnifier centered over the date window.

Replacement tells

Cyclops lens offset laterally from the date window center
Magnification significantly less than 2.5x
Crystal that scratches with a steel key

Case back markings

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2021 to present

Solid caseback with Rolex coronet engraved at center
"ROLEX OYSTER PERPETUAL DATE EXPLORER II" on the outer ring
"SUPERLATIVE CHRONOMETER OFFICIALLY CERTIFIED" on a middle ring
Serial engraved on the rehaut (this generation moved to rehaut engraving)
Reference 226570 on the rehaut at 12

Movement tells

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Cal. 3285 with 70-hour power reserve, Chronergy escapement, and Parachrom hairspring. A fully wound 226570 should run 65 to 72 hours before stopping.
The 24h hand function: the hand is geared to the hour wheel at a 2:1 ratio and cannot be set independently. If the hand can be adjusted separately from the hour hand at any crown position, the movement is incorrect.
The local-hour adjustment at crown position 2 moves the hour hand in one-hour increments without stopping the seconds hand. If seconds freeze during local-hour adjustment, suspect a movement swap.
A Cal. 3187 (prior-generation Explorer II movement) in a stated 226570 has a 48-hour power reserve. The power reserve difference is detectable by fully winding and timing to stop.
Parachrom hairspring visible as a blue-violet spring at the balance wheel. Standard steel-colored spring indicates a non-Rolex specification component.

Sources: Rolex Forums -- Explorer II 226570 authentication and production documentation; WatchCSS -- Explorer II 24h hand and bezel verification guide; Hodinkee -- Rolex Explorer II 226570 hands-on overview.