Ulysse Nardin 1503-170LE-1A-GW/3A Diver Chronograph Great White 44mm Grey Dial Watch

Ulysse Nardin Diver Chronograph “Great White” – Ref. 1503-170LE-1A-GW/3A

In tribute to shark conservation and marine exploration, the Ulysse Nardin Diver Chronograph “Great White” (Ref. 1503-170LE-1A-GW/3A) is a limited edition of just 300 pieces. This 44 mm titanium chronograph merges high-performance diving utility with bold oceanic design and Swiss mechanical mastery.

Deep Dive into Technical Design

The case is crafted from sand‑blasted and satin‑finished titanium, offering a lightweight yet rugged platform. Its unidirectional rotating bezel is molded from white rubber over titanium, both tactile and visually striking. With water resistance rated at 300 meters (30 ATM), the Diver “Great White” is engineered for serious underwater conditions.

Shark-Inspired Dial Chronograph Functionality

The matte grey sand-blasted dial evokes the skin of the Great White shark, with subtle texture and legibility. Complications include a 30-minute chronograph counter at 3 o’clock, a 12-hour counter with integrated date at 6 o’clock, and a small seconds indicator at 9 o’clock. Hands and markers are filled with Super-LumiNova, ensuring readability deep beneath the waves.

Performance Movement – Caliber UN‑150

Driving the 1503-170LE-1A-GW/3A is Ulysse Nardin’s in-house UN‑150 automatic chronograph movement, operating at 4 Hz and offering a 48‑hour power reserve. The caliber features a silicon escapement wheel, anchor, and balance spring—technology pioneered by the brand for peak accuracy and magnetism resistance.

Distinctive Aesthetics Environmental Commitment

• The limited edition honors both sharks and sustainability: Ulysse Nardin supports shark conservation initiatives through this release.
• The reverse caseback bears an engraved shark silhouette—a nod to the model’s namesake and deep-sea motif.
• The white rubber strap features a luminescent shark graphic and titanium buckle branded with UN anchor insignia. It’s bold, secure, and fit for aquatic conditions.

Key Specifications at a Glance

• Reference: 1503-170LE-1A-GW/3A
• Case: 44 mm titanium; sand‑blasted satin-finished
• Bezel: White rubber over titanium, concave unidirectional
• Dial: Grey sand‑blasted with three-counter chronograph layout
• Movement: UN‑150 automatic chronograph, 48‑hour power reserve, silicon/DiamonSIL components
• Water Resistance: 300 m (30 ATM)
• Strap: White rubber with shark motif, titanium tang buckle
• Limited Edition: 300 pieces worldwide

What Makes the 1503-170LE-1A-GW/3A Unique?

• Conservation Symbolism: An official shark-themed launch, with proceeds supporting shark protection partnership programs.
• Technical Diver Chronograph: Rare to see full chronograph complication in a diver rated 300 m with UN‑150 caliber—Ulysse Nardin’s capable workhorse.
• Durable Distinctive Style: Titanium and white rubber signature design balances nautical toughness with visual flair.

Conclusion

The Ulysse Nardin Diver Chronograph “Great White” Ref. 1503-170LE-1A-GW/3A is more than a technical dive tool—it’s a collector’s statement and marine conservation icon. Limited in quantity and rich in purpose, it seamlessly blends chronograph precision, robust construction, and ecological narrative into one striking timepiece.