2010–present · 42mm · caliber Vulcain Cal. 120 skeleton: manual-wind alarm, 18,000bph; dual-mainspring Cricket architecture displayed via skeletonized mainplates and bridges; both time and alarm barrels visible; yellow gold case
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Movement tier: unclassified · caliber Vulcain Cal. 120 skeleton: manual-wind alarm, 18,000bph; dual-mainspring Cricket architecture displayed via skeletonized mainplates and bridges; both time and alarm barrels visible; yellow gold case
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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The Vulcain Golden Heart is a skeletonized version of the Cricket alarm movement in yellow gold, where both the timekeeping and alarm mainspring barrels are visible through open mainplates and bridges. Authentication centers on the same alarm function, plus visual verification of the skeletonized dual-barrel architecture.
Known issues in the market
Both mainspring barrels should be visible through the skeletonized bridges; any claimed Golden Heart showing only one barrel is not correct.
The alarm function must work; same audible buzz test applies.
Yellow gold case and skeleton bridges should carry correct gold purity hallmarks.
Area
What to check
What is correct
Red flag
movement
Skeletonized dual-barrel architecture
Both the timekeeping mainspring barrel and the alarm mainspring barrel are visible through the open plates and bridges; the two barrels are distinctly different in size and position
Only one barrel visible; fully or mostly solid mainplate with no skeleton openings; bridges that obscure both barrels
movement
Alarm function with audible buzz
Same 20-25 second buzzing alarm as other Cricket references; the skeletonized architecture transmits sound and vibration directly
No alarm function; click-only alarm; alarm that does not sustain
crown
Two-position crown
Same two-position crown as other Cricket references; lower for time, upper for alarm
Single-position crown only
case
Yellow gold case and hallmarks
Yellow gold case carries correct purity marks (typically 18k); case weight consistent with gold; no color variation suggesting gold plating over base metal
Missing or incorrect gold purity marks; case weight inconsistent with solid gold; yellow color that appears to wear through at high-contact points suggesting plating
Common legitimate replacements
Strap replacement is common.
Expert resources: Vulcain authorized dealers can authenticate via serial number. The dual-barrel and alarm function test is the most practical in-person check.
Authentication guide
Last reviewed June 2026
The Golden Heart is a skeletonized alarm watch showing the Cricket movement's two-barrel architecture openly through the dial. The skeleton display makes the two-barrel check immediate and visual without needing to open the caseback.
Known reproduction risks
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LOW
Single-barrel skeleton movement in a Golden Heart-style case
Through the dial, only one barrel visible rather than two
Skeleton finishing rougher than Vulcain's production standard
No caseback vibration from alarm activation
Dial variants by era
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Era
Description
Identifiers
Golden Heart production
Skeleton dial revealing the full Cricket movement. Both barrels visible from the front. Gold case.
Both barrels visible through the skeleton dial without removing the caseback
Cricket movement architecture visible: two trains running in parallel
Gold case with the skeleton dial as the primary visual feature
Service part flags
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Movement (skeleton)
Original: Skeletonized Cricket movement; bridges and plates reduced to the minimum material while retaining structural integrity. Both barrels visible from the front.
Replacement tells
Only one barrel visible through the skeleton dial
Skeleton finishing that is rough or has visible machine marks (the Golden Heart is a prestige piece; finishing should be refined)
Movement architecture inconsistent with the Cricket two-train layout
Case back markings
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All Golden Heart production
Vulcain markings
Skeletonized Cricket caliber designation
Gold case purity marking
Serial number
Movement tells
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Both barrels visible from the front through the skeleton dial; this is the immediate two-barrel confirmation without tools.
Caseback vibration test still applies: activate the alarm and confirm the caseback vibrates against the wrist.
Skeleton finishing quality: beveled edges should be consistent; polished surfaces should reflect clearly. Rough skeleton finishing is a sign of a non-original or heavily modified movement.
