Live pricing is coming soon. Get notified when it is available for this reference.
In-house manufacture caliber
Versatile size: fits most wrists (6–7.5 in / 15–19 cm)
39 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
Authentication
Voutilainen produces fewer than 50 pieces per year; provenance verification is mandatory, and the Cal. 28 GMR finishing must show hand-done Cotes de Geneve and blued screws under a loupe.
Known issues in the market
- Fewer than 50 pieces per year across all references; provenance is verifiable for every piece.
- Machine-regular finishing on bridges or a missing blued screw indicates a non-genuine movement.
| Area | What to check | What is correct | Red flag |
|---|---|---|---|
| movement | Cal. 28 GMR hand-done Cotes de Geneve | Hand-done Cotes de Geneve with natural variation in line spacing visible under a loupe | Machine-regular or perfectly uniform Geneva stripes; non-genuine movement |
| movement | Blued screws on movement bridges | Hand-blued screws with consistent blue oxide finish throughout | Unblued, silver, or mixed-finish screws; non-genuine or partially replaced movement |
| dial | GMR dual-time indication configuration | Home time and local time shown separately; consistent with GMR documentation | Incorrect indication configuration; non-genuine or wrong reference dial |
| caseback | Voutilainen serial and GMR reference | Voutilainen serial and reference correctly engraved | Missing or incorrect engravings; non-genuine caseback |
Common legitimate replacements
- No serviceable parts outside Voutilainen workshop.
Expert resources: Voutilainen workshop; voutilainen.fi for provenance verification.
Authentication guide
Last reviewed June 2026
The GMR adds a GMT display and power reserve indicator to the Cal. 28 architecture. A 39mm dress watch in gold or platinum. One of Voutilainen's more complex references; provenance from an authorized dealer is essential.
Sources: Voutilainen official.





