GrailAtlasAn independent mechanical watch reference
简体中文
Mass-produced#1 in familyOfficial press photos

Live pricing is coming soon. Get notified when it is available for this reference.

Service

Recommended interval
every 5 years
Typical cost (USD)
$300 – $600
Parts availability
excellent

One of the most widely serviced calibers in the world; any competent independent can handle it. Parts are inexpensive and stocked everywhere.

Also uses ETA 2824-2

Damasko DA36 Ref. DA36, black dial, steel case
Damasko
DA
Doxa Sub 300T Searambler Ref. 840.10.021.10, silver dial, steel case
Doxa
Sub
Doxa Sub 600T Pacific Ref. 861.10.351.10, blue dial, steel case
Doxa
Sub
Doxa Sub 200 Ref. 799.10.351.10, blue dial, steel case
Doxa
Sub
Rado Centrix Automatic 39mm Ref. R30023713, silver dial, ceramic case
Rado
Centrix
Bulgari
Diagono
Versatile size: fits most wrists (6–7.5 in / 15–19 cm)
37 mm case. The sweet spot for the broadest range of wrist sizes. Neither too dainty nor too bold.

Not yet rated

Community + OSINT signals haven’t landed for this reference yet. We don’t publish a rating against zero signal: the number would mean nothing. Editorial body + caliber + market value still surface above; ratings appear once the signal corpus does.

Search pre-owned listings

Chrono24
eBay (sold listings)
WatchBox

Authentication

Rado ceramic and hard metal cases are scratch-resistant by design; any Captain Cook 37 with scratched case surfaces has a non-genuine or incorrect material case.

Known issues in the market
  • The high-tech ceramic case should show no scratches; surface scratches indicate a non-genuine or incorrect material case.
  • The unidirectional bezel must rotate only counterclockwise; clockwise rotation means the ratchet is worn or non-genuine.
AreaWhat to checkWhat is correctRed flag
caseCeramic/hard metal case surface conditionScratch-free; Rado high-tech ceramic is highly scratch-resistantScratched case surfaces; non-genuine or incorrect material
caseUnidirectional bezel rotationRotates counterclockwise only with positive ratchet feel at each minuteBezel rotates clockwise; worn or non-genuine ratchet
movementETA 2824-2 with Rado-signed rotor through casebackETA 2824-2 architecture with Rado-signed rotor visibleNon-ETA architecture or unsigned rotor; movement swap
casebackRado engravings and serial numberRado name, reference, and serial engraved on casebackMissing or incorrect engravings; non-genuine caseback
Common legitimate replacements
  • Crystal; sapphire standard.
  • Crown; Rado OEM only.
Expert resources: Rado authorized service; Rado.com reference documentation.

Authentication guide

Last reviewed June 2026

The Captain Cook reissue is a ceramic-case dive watch. Authentication centers on material verification and caseback markings; the movement is ETA-sourced and not a distinguishing factor.

Known reproduction risks

toggle
LOW

The Captain Cook reissue is not a high-counterfeit target due to its ceramic construction being difficult to replicate cheaply.

  • Replica ceramic cases often use a ceramic coating over steel rather than solid ceramic; the weight will be noticeably heavier than a genuine piece
  • Bezel click action on replicas is typically loose or overly stiff; the genuine bezel has a precise 60-click action
  • Dial printing on replicas shows uneven text weight under magnification

Run a fingernail across the case; genuine ceramic is harder than steel and will not scratch from a fingernail. A steel case with ceramic coating will eventually show wear through at edges.

Dial variants by era

toggle
EraDescriptionIdentifiers
2017 to present (reissue)Round case in high-tech ceramic (HTC) or plasma ceramic. Applied Rado logo and "Captain Cook" text at 12 o'clock. Date at 3. Rotating ceramic bezel with 60-minute scale.
  • Ceramic case is noticeably lighter than an equivalently sized steel case
  • Case surface does not show fingerprints as readily as polished steel
  • Plasma ceramic variant is a matte grey, not glossy black; the two are distinct SKUs
  • Bezel insert is integral ceramic, not a separate ring insert as on steel dive watches

Service part flags

toggle
Bezel

Original: Integral ceramic bezel; colour matches the case material exactly.

Replacement tells
  • Any mismatch in surface finish between the bezel and case suggests a non-original replacement
  • Steel bezel on a ceramic-case Captain Cook is wrong; the two materials are not interchangeable within a reference
Crown

Original: Screw-down crown with Rado logo engraving.

Replacement tells
  • Generic unsigned crown is a clear service replacement
  • Incorrect diameter or thread pitch will prevent proper engagement with the tube

Case back markings

toggle
2017 to present
  • "RADO" in large text across centre
  • Reference number and serial number engraved
  • "Swiss Made", "Water Resistant 300M / 1000ft"
  • Screw-in caseback; should be tight and show no corrosion at the thread

Movement tells

toggle
  • Movement is ETA 2824-2 or Sellita SW200 depending on production year; neither is an in-house caliber and both are widely available for service.
  • After service, rotor weight should swing freely with no grinding or resistance.
  • Power reserve is approximately 38 hours; a fully wound example that stops before 30 hours suggests a worn mainspring.
  • Rado does not engrave the movement with special decoration; any movement with added côtes de Genève or perlage is a swap-in from a different source.
Sources: Rado Captain Cook product page; Swatch Group technical documentation.

You might also like

Damasko DA36 Ref. DA36, black dial, steel case
Damasko
DA
Ref. DA36
Doxa Sub 300T Searambler Ref. 840.10.021.10, silver dial, steel case
Doxa
Sub
Ref. 840.10.021.10
Doxa Sub 600T Pacific Ref. 861.10.351.10, blue dial, steel case
Doxa
Sub
Ref. 861.10.351.10
Doxa Sub 200 Ref. 799.10.351.10, blue dial, steel case
Doxa
Sub
Ref. 799.10.351.10
Rado Centrix Automatic 39mm Ref. R30023713, silver dial, ceramic case
Rado
Centrix
Ref. R30023713
Bulgari
Diagono
Ref. SCB42C3SSD

Buying guidance

← Back to Grail Atlas