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

  • Reference: 5901-5630-NANA

  • Case size: 41.3mm bronze-gold alloy (patina-resistant)

  • Crystal: Box-shaped sapphire

  • Bezel: Domed sapphire insert, uni-directional

  • Dial: Black with patinated indices and signature moisture indicator

  • Movement: Blancpain Caliber 1154.P2 (automatic, silicon hairspring, anti-magnetic)

  • Power Reserve: 100 hours

  • Water Resistance: 300m

  • Limited Edition: 555 pieces



💡 Why It Stands Out

  • 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.

  • 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.

  • Perfect Proportions: The 41.3mm case strikes a balance between modern wrist presence and vintage wearability.

  • 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?

  • Enthusiasts of vintage military watches with a love for subtle luxury

  • Collectors seeking true limited editions that hold value

  • 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

✔️ 100% Authenticity Guaranteed
✔️ Worldwide Shipping
✔️ Personal Viewings Available



📺 Watch Our Full Video Review

🎥 ▶️ Blancpain Fifty Fathoms 70th Anniversary Act 3 – Full Review


Derek S