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In-house manufacture caliber · caliber Smith Co-Axial (hand-wound, in-house, with retrograde date)
Versatile size: fits most wrists (6–7.5 in / 15–19 cm)
38 mm case. The sweet spot for the broadest range of wrist sizes. Neither too dainty nor too bold.

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Authentication

The retrograde date hand must snap back instantaneously at month end; a slow return indicates the retrograde spring needs service.

Known issues in the market
  • Retrograde snap must be instantaneous; any slow return indicates a retrograde spring service need.
  • Co-axial escapement applies throughout the RWS caliber family; verify escapement architecture.
AreaWhat to checkWhat is correctRed flag
dialRetrograde date hand snap at month endInstantaneous snap back to 1 at the end of each monthSlow or incomplete retrograde return; retrograde spring service needed
movementCo-axial escapement wheel visibilityCo-axial wheel visible in movement architecture through casebackStandard lever escapement; non-genuine or incorrect movement
casebackRoger W. Smith serial and Series 2 designationSerial and Series 2 designation correctly engravedMissing or incorrect engravings; non-genuine caseback
movementSmith-level movement finishingHand-done finishing consistent with RWS workshop standardsMachine-regular finishing; non-genuine movement
Common legitimate replacements
  • No serviceable parts outside RWS workshop.
Expert resources: Direct verification with Roger W. Smith workshop; rwsmith.co.im.

Authentication guide

Last reviewed June 2026

The Series 2 adds a retrograde date and small seconds to the co-axial Series 1 architecture. A 38mm round case in gold. Production is equally limited; the retrograde date adds a distinctive aesthetic element at 12 o'clock.

Known reproduction risks

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LOW

No known replica. The retrograde date co-axial combination is unique to Roger Smith Series 2; serial number verification with the workshop is definitive.

  • Absence of the retrograde date arc at 12 o'clock means the watch is a different reference
  • A continuously running date display rather than retrograde is an immediate disqualifier

Verify serial number with the Roger W. Smith workshop. Request timing machine results covering retrograde mechanism function.

Dial variants by era

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EraDescriptionIdentifiers
2011 to presentSilver or white enamel dial with Roman numerals. Retrograde date display at 12 o'clock with a fan-shaped arc. Small seconds subdial at 6 o'clock. Same hand and finishing aesthetic as Series 1.
  • Retrograde date arc at 12 o'clock: date hand sweeps across an arc and snaps back at end of month
  • Small seconds at 6 o'clock
  • "Series 2" designation visible on dial or documentation
  • Co-axial escapement through caseback
  • 38mm case diameter vs. 36mm on Series 1

Service part flags

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Retrograde date mechanism

Original: The retrograde date hand sweeps across the date arc from day 1 to 28/30/31, then snaps back instantly to 1. The snap-back should be instantaneous and the mechanism should not require manual correction at month end.

Replacement tells
  • Date hand that drifts rather than snapping back instantly at month end
  • Date arc with printing inconsistencies or a scale that does not match the caliber specification
  • Date hand with a profile inconsistent with Roger Smith hand making

Case back markings

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2011 to present
  • Individual serial number
  • "Roger W. Smith Series 2" designation
  • "Made in Isle of Man"
  • 750 gold material mark

Movement tells

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  • The retrograde date module adds complexity to the co-axial caliber; service requires specific knowledge of the retrograde mechanism in addition to co-axial escapement training.
  • A properly functioning retrograde date requires correct lubrication of the cam and spring; sluggish snap-back indicates the retrograde spring needs attention.
  • All other movement finishing and co-axial escapement authentication applies identically to the Series 1 guide.
Sources: Roger W. Smith official.

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