WHICH WATCH FITS

Hublot Spirit of Big Bang Titanium 42

Hublot · Spirit of Big Bang

Hublot Spirit of Big Bang Titanium 42

Hublot Spirit of Big Bang Titanium 42 (reference 631.NX.1420.RX) — specifications, measurements, watch images and standardized wrist-fit previews for informed comparison.

A 42 mm tonneau / chronograph watch with automatic movement (Hublot HUB4700) and 100 m water resistance.

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Best forWearers who enjoy a sporty chronograph layout and elapsed-time function.
Not ideal forBuyers prioritizing low purchase and service costs.
Wearsmedium

At a glance

Reference631.NX.1420.RX
CollectionSpirit of Big Bang
Model lineSpirit of Big Bang
Production statusCurrent
Official size42 mm
Watch technology InfoMechanical
DisplayAnalog
Movement InfoAutomatic
Calibre / operating system InfoHublot HUB4700
Key features InfoDate, Chronograph
Complication InfoChronograph
Illumination InfoLimited
Case diameter Info42 mm
Thickness Info14.1 mm
Lug-to-lug Info51 mm
Power reserve / runtime50 hours
Water resistance100 m
OriginSwiss Made
Recommended wrist Info14–20 cm
Price categoryHigh luxury

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Options for this reference

Available configurations

Included strap and bracelet options

Rubber

Strengths and considerations

Strengths

  • Tonneau / Chronograph design; Automatic movement; 100 m stated water resistance.

Considerations

  • Buyers prioritizing low purchase and service costs.
See sources

Manufacturer and technical references used to verify this watch specification.

Specifications last verified: 2026-08-14.

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