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Movement tier: unclassified
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
Verify the Cal. FC-303 in-house architecture through the exhibition caseback; boat steering wheel seconds hand is the dial signature.
Known issues in the market
- The FC-303 caseback view distinguishes it from ETA-based FC references at similar price points.
- The nautical dial motifs are original design elements; any stripped or refinished dial removes the boat steering wheel seconds hand detail.
| Area | What to check | What is correct | Red flag |
|---|---|---|---|
| caseback | FC-303 in-house architecture | FC-303 in-house movement visible through exhibition caseback; distinct FC bridge layout | ETA or Sellita architecture; non-genuine movement |
| dial | Boat steering wheel seconds hand | Boat steering wheel motif on the seconds hand; correct nautical dial design | Standard seconds hand without the steering wheel motif; wrong or replacement dial |
| case | Runabout case finish | Correct case finish and proportions for the 42mm Runabout reference | Case finish inconsistency or incorrect proportions |
Common legitimate replacements
- Leather or rubber strap; FC OEM.
- Crystal; sapphire standard.
Expert resources: Frederique Constant authorized service; FC Runabout product documentation.
Authentication guide
Last reviewed June 2026
The Runabout is FC's nautical-themed dress sport watch; the wood-paneled or vintage-boat dial is the visual signature, and the FC-303 in-house caliber anchors authentication.
Sources: Frédérique Constant Runabout.





