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Movement tier: unclassified · caliber H. Moser Cal. HMC 327: in-house automatic with small seconds at 6, 28,800bph, 72h PR; used in Endeavour Small Seconds; signature Moser slim profile · 72h power reserve (3 days)
Medium-large: suits wrists 6.5 in+ (16.5 cm+)
40 mm case. Wears confidently on average to larger wrists. May overhang on slender builds.

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Authentication

Total Eclipse fumee dial is intentionally near-black; the MOSER text in correct font is the verification check.

Known issues in the market
  • The nearly invisible branding on Total Eclipse dials is intentional; any Streamliner where the branding is clearly legible at arm length may not be the Total Eclipse variant.
  • The fumee dial depth on Total Eclipse is extreme; any dial that looks lighter than near-black is a wrong dial variant.
AreaWhat to checkWhat is correctRed flag
dialTotal Eclipse dial darknessFumee dial so dark it appears nearly black; MOSER text barely visible; intentional designDial clearly lighter than near-black; wrong variant or non-genuine dial
dialMOSER text fontMOSER text in correct Moser font; barely legible at arm length on Total EclipseWrong font; clearly legible branding at arm length; wrong dial variant
casebackHMC 327 movementHMC 327 in-house movement with small seconds complication visible through casebackNon-in-house movement; movement swap
Common legitimate replacements
  • Leather or rubber strap; Moser OEM.
  • Crystal; sapphire standard.
Expert resources: H. Moser & Cie Streamliner Total Eclipse product documentation; Moser authorized service.

Authentication guide

Last reviewed June 2026

The Streamliner Small Seconds Total Eclipse is the simpler Streamliner variant: integrated bracelet, cushion case, small seconds at 6, and the Total Eclipse fumé dial that is nearly black at the edges. The near-black fumé gradient is deeper than standard Moser fumé and is the primary dial identity check.

Known reproduction risks

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LOW

The Total Eclipse fumé treatment is the defining characteristic and the hardest single element to replicate. A flat or lighter-gradient dial immediately disqualifies an example.

  • Fumé gradient lighter than the "Total Eclipse" near-black periphery specification
  • Flat uniform dial color with no gradient
  • Integrated bracelet with non-flat link profile
  • Conventional metallic hairspring through caseback

Dial variants by era

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EraDescriptionIdentifiers
2023 to presentCurrent production Streamliner Small Seconds Total Eclipse in steel, 40mm. Integrated metal bracelet. Near-black fumé dial -- the "Total Eclipse" designation refers to the deep dark periphery of the gradient.
  • Deep "Total Eclipse" fumé dial: near-black at the periphery, lighter translucent center
  • Deeper gradient than standard Moser fumé -- the edges should be very dark, approaching opaque
  • Integrated flat-link bracelet flowing from the cushion case
  • Small seconds at 6 o'clock
  • "H. Moser & Cie." text in the correct small placement
  • No hour indices on the dial
  • No chronograph pushers -- this is the simple time-only Streamliner configuration

Service part flags

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Total Eclipse fumé gradient depth

Original: The Total Eclipse designation refers to a deeper-than-standard fumé treatment where the dial edges approach near-black. This is the defining dial characteristic. A standard Moser fumé (lighter at edges) on a stated Total Eclipse is a dial swap.

Replacement tells
  • Dial with a lighter fumé gradient inconsistent with the Total Eclipse specification (edges should be very dark)
  • Flat, uniform color with no gradient
  • Gradient with banding or color breaks
  • Dial with printed indices -- the Total Eclipse dial has none
Integrated flat-link bracelet

Original: Same integrated bracelet architecture as the Streamliner Flyback. Flat-link profile flowing from the cushion case. The bracelet is specific to the Streamliner form and not interchangeable with conventional Moser or third-party bracelets.

Replacement tells
  • Non-flat link profile inconsistent with the known Streamliner geometry
  • Bracelet that does not flow seamlessly from the case at the lug junction
  • Aftermarket bracelet or strap on a stated full-specification Total Eclipse
Movement via caseback

Original: Exhibition caseback displaying Cal. HMC 327 (shared with the Endeavour Small Seconds). The Straumann hairspring is visible in the balance assembly. Movement finishing to Moser's standard.

Replacement tells
  • Conventional metallic hairspring instead of Straumann flat silicon
  • Movement finishing coarse under magnification
  • Movement layout inconsistent with Cal. HMC 327 architecture

Case back markings

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2023 to present
  • Exhibition caseback displaying Cal. HMC 327
  • Straumann hairspring visible in the balance assembly
  • "H. Moser & Cie." on the movement
  • Reference and serial number on the case band
  • Steel hallmark

Movement tells

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  • Cal. HMC 327 carries the Straumann flat-coil silicon hairspring. Verification of the hairspring character through the caseback is the primary movement tell.
  • Power reserve is approximately 72 hours. A Total Eclipse stopping before 60 hours when fully wound warrants service.
  • The small seconds should stop instantaneously when the crown is pulled for time-setting.
Sources: H. Moser & Cie. -- Streamliner Small Seconds Total Eclipse specification; WatchPro -- Streamliner Total Eclipse review.

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