Spirit of Big Bang Chronograph

Hublot Spirit of Big Bang Chronograph 601.NX.0173.LR

The Hublot Spirit of Big Bang – Ref. 601.NX.0173.LR translates the unmistakable Big Bang identity into a bold tonneau-shaped titanium case, creating a striking fusion of technical architecture and contemporary sport-luxury design. Measuring 51 x 45 mm, this reference combines lightweight titanium with black composite resin accents to emphasize Hublot’s signature Art of Fusion philosophy.

The brushed and polished Grade 5 titanium case features a fixed titanium bezel secured by six H-shaped screws, along with integrated black composite elements along the lugs and caseband. The watch is fitted with anti-reflective sapphire crystal and a transparent exhibition caseback revealing the movement. A screw-down crown and chronograph pushers ensure 100 meters of water resistance, reinforcing its robust sports credentials.

The skeletonized dial exposes the chronograph architecture beneath, highlighting the mechanical complexity of the movement while maintaining excellent legibility through bold luminescent hands and hour markers. The layout includes a central chronograph seconds hand, a 30-minute counter at 3 o’clock, 12-hour counter at 6 o’clock, running seconds at 9 o’clock, and a date display between 4 and 5 o’clock.

At its core beats the Hublot HUB4700, an automatic chronograph calibre derived from the legendary Zenith El Primeroarchitecture. Composed of approximately 278 components and 31 jewels, it operates at 36,600 vibrations per hour (5 Hz), delivering exceptional chronograph precision alongside a 50-hour power reserve.

The watch is fitted with Hublot’s signature black alligator leather and rubber “Gummy” strap, secured by a titanium deployant clasp, providing both durability and comfort. With its tonneau profile and skeletonized design, the Spirit of Big Bang 601.NX.0173.LR embodies Hublot’s modern vision of high-performance watchmaking.

Key Specifications

• Reference: 601.NX.0173.LR

• Collection: Spirit of Big Bang Chronograph

• Case Material: Brushed and polished titanium

• Bezel: Fixed titanium with H-shaped screws

• Dimensions: 51 mm × 45 mm

• Thickness: approx. 17 mm

• Dial: Skeletonized

• Calibre: Hublot HUB4700, automatic chronograph

• Jewels: 31

• Frequency: 36,600 vph (5 Hz)

• Functions: Hours, minutes, small seconds, chronograph, date

• Power Reserve: approx. 50 hours

• Water Resistance: 100 meters (10 ATM)

• Strap: Black alligator leather with titanium deployant clasp