To celebrate the 70th anniversary of its legendary dive watch, Blancpain released a trio of special editions—each more distinctive than the last. But Act 3, inspired by the iconic MIL-SPEC model, stands out as the most authentic tribute to the brand’s military roots.
Limited to just 555 pieces worldwide, this Fifty Fathoms isn’t just a watch—it’s a heritage revival done right.
🌊 The MIL-SPEC Spirit Reborn
🔗 View Blancpain Fifty Fathoms Act 3 on Swiss Connection Watches
The Fifty Fathoms MIL-SPEC, introduced in the late 1950s, was developed specifically for military divers—and became the standard for elite units around the world. Act 3 brings this history full circle with a faithful case design, iconic moisture indicator, and stealthy radium-toned accents.
🔧 Specifications at a Glance
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Reference: 5901-5630-NANA
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Case size: 41.3mm bronze-gold alloy (patina-resistant)
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Crystal: Box-shaped sapphire
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Bezel: Domed sapphire insert, uni-directional
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Dial: Black with patinated indices and signature moisture indicator
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Movement: Blancpain Caliber 1154.P2 (automatic, silicon hairspring, anti-magnetic)
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Power Reserve: 100 hours
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Water Resistance: 300m
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Limited Edition: 555 pieces
💡 Why It Stands Out
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Bronze-Gold Case: Blancpain uses a proprietary alloy blending gold, copper, and silver to offer a vintage bronze tone without oxidation. The result? A warm, matte glow that stays elegant over time.
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Moisture Indicator Returns: A historic feature of early military-spec models, this disc changes color when water enters the case—a powerful nod to Blancpain’s tool-watch legacy.
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Perfect Proportions: The 41.3mm case strikes a balance between modern wrist presence and vintage wearability.
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100-Hour Power Reserve: Long autonomy, anti-magnetic properties, and top-tier finishing make the Cal. 1154.P2 a workhorse worthy of the Fifty Fathoms name.
🎯 Who Is It For?
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Enthusiasts of vintage military watches with a love for subtle luxury
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Collectors seeking true limited editions that hold value
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Divers or sportsmen wanting heritage aesthetics with cutting-edge performance
🔥 Limited & Exclusive – Act Fast
With only 555 units globally, and high demand among serious collectors, the Act 3 is likely to become one of the most sought-after modern Blancpain references.
🛒 Secure yours today at Swiss Connection Watches
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🎥 ▶️ Blancpain Fifty Fathoms 70th Anniversary Act 3 – Full Review