Home / Hublot Big Bang 421.NL.5170.RX 42 mm Mens
  • Front view of Hublot Big Bang 421.NL.5170.RX with blue chronograph dial and blue rubber strap. - Front view
  • Blue dial close-up of Hublot Big Bang 421.NL.5170.RX with chronograph subdials and bezel screws. - Video
  • A full image of the Hublot Big Bang 421.NL.5170.RX, showing the black rubber strap. - Video
  • Black strap close-up of Hublot Big Bang 421.NL.5170.RX showing rubber texture and buckle. - Video
  • White strap detail of Hublot Big Bang 421.NL.5170.RX showing rubber strap and clasp end. - Video
  • Front view of Hublot Big Bang 421.NL.5170.RX blue skeleton dial and titanium case.
  • Close-up of Hublot Big Bang 421.NL.5170.RX blue dial showing chronograph movement details.
  • Angled wrist shot of Hublot Big Bang 421.NL.5170.RX blue strap and dial.
  • Full front view of Hublot Big Bang 421.NL.5170.RX blue dial and blue bezel.
  • Side profile of Hublot Big Bang 421.NL.5170.RX highlighting crown and pushers.
  • Caseback view of Hublot Big Bang 421.NL.5170.RX showing exhibition back and rotor.
  • Strap detail of Hublot Big Bang 421.NL.5170.RX blue rubber strap and stitching.
  • Buckle close-up of Hublot Big Bang 421.NL.5170.RX showing metal folding clasp.
  • Full front view of Hublot Big Bang 421.NL.5170.RX in rose gold with black dial.
  • Close-up of Hublot Big Bang 421.NL.5170.RX rose gold case with black skeleton dial.
  • Close-up of Hublot Big Bang 421.NL.5170.RX grey dial with chronograph layout.
  • Full view of the front of the Hublot Big Bang 421.NL.5170.RX watch, featuring a grey dial and rose gold case.
  • Front view of Hublot Big Bang 421.NL.5170.RX white ceramic bezel and dial details.
  • Full view of Hublot Big Bang 421.NL.5170.RX white ceramic case with skeleton dial.
  • Close-up of Hublot Big Bang 421.NL.5170.RX white ceramic bezel and dial details.
  • Angled view of Hublot Big Bang 421.NL.5170.RX white case showing crown and pushers.
  • Front view of Hublot Big Bang 421.NL.5170.RX black ceramic case with skeleton dial.
  • Close-up of Hublot Big Bang 421.NL.5170.RX black dial and bezel screws.
  • Angled view of Hublot Big Bang 421.NL.5170.RX black ceramic case and strap.
  • Wrist shot of Hublot Big Bang 421.NL.5170.RX black case with rubber strap.

Hublot Big Bang 421.NL.5170.RX 42 mm Mens

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  • Detail
    Brand: Hublot Replica
    Collection: Big Bang
    Model: Big Bang Chronograph
    Model Number: 421.NL.5170.RX
    Gender: Men's
    Case Size: 42 mm
    Case
    Case Shape: Round
    Case Material: Satin-Brushed Titanium-Style Finish
    Bezel Details: 6 H-shaped bezel screws
    Case Finish: Brushed surfaces with polished bevels
    Crown: Rubberized crown with engraved logo-style cap
    Pushers: Chronograph pushers with smooth tactile click
    Crystal: Sapphire-style crystal with anti-reflective coating
    Caseback: Exhibition back (open view)
    Case Construction: Multi-part layered case architecture
    Dial
    Dial Type: Skeleton dial (open-worked)
    Dial Color: Deep blue
    Hour Markers: Applied numerals + baton indexes
    Hands: Rose-gold-tone hands with luminous inlays
    Chronograph Subdials: Two-register layout
    Date Display: Date window (angled cutout style)
    Minute Track: Printed inner minute/seconds track
    Lume: Luminous hands and key markers
    Strap & Clasp
    Strap Material: Structured rubber strap
    Strap Color: Blue
    Strap Texture: Ribbed / lined profile
    Clasp Type: Folding deployant clasp
    Clasp Finish: Brushed metal with engraved branding
    Fit: Adjustable for most wrist sizes
    Movement
    Movement Type: Automatic chronograph (self-winding)
    Caliber: 1:1 Clone Caliber HUB1280
    Power Reserve: 72 hours
    Beat Rate: 28,800 vph
    Jewels: 43
    Deviation: Asian (± 30 - 60 sec/day), Swiss (± 15 - 30 sec/day), Top (± 2 - 5 sec/day)
    Functions
    Time Display: Hours, minutes, central seconds
    Chronograph: Start/stop/reset with elapsed-minute counter
    Date: Quick-read date window
    Water Resistance
    Water Resistance (By Version): Asian: Daily splash resistant; Swiss: 30 meters; Top: 100 meters
    After-Sales Service
    Warranty: Asian: 1 Year / Swiss: 2 Years / Top: 5 Years
    Quality Check: Visual inspection + timekeeping calibration before shipping
    Support Window: 48-hour arrival check (photo/video recommended)
    What’s Included: Watch, protective packaging, basic care guide
    Return Policy: If you are not satisfied with our product, please return your watch within 30 days for a full refund. See our return policy for details.

    Hublot Big Bang 421.NL.5170.RX 42mm 1:1 Clone Quality

    The Hublot Big Bang 421.NL.5170.RX blends the brand’s signature layered case design with a bold blue skeleton chronograph dial and a sport-ready rubber strap. Built for enthusiasts who want the iconic Big Bang look with an emphasis on accurate proportions and finishing.

    Key Selling Points

    • 1:1 clone-level case geometry with correct bezel screw placement and layered construction.
    • High-clarity skeleton dial with crisp printing, depth, and aligned subdial layout.
    • Blue ceramic-style bezel with clean edges and a premium satin sheen.
    • Caliber option clearly specified: available with 1:1 Clone Caliber HUB1280 for top-tier configuration.
    • Strong wrist presence (42mm) without looking oversized; sporty-luxury everyday wear.
    • Rubber strap comfort with secure deployant clasp for daily use.
    • Detail-focused finishing on hands/markers for a genuine-like visual balance.

    FAQ

    Quick answers about usage, care, sizing, and ordering details.

    How do I use the chronograph correctly?
    Use the top pusher to start/stop and the lower pusher to reset after stopping. Avoid resetting while the chronograph is running to protect the mechanism.
    Is the skeleton dial easy to read in daily wear?
    Yes. The applied numerals and baton markers create strong contrast, and the hand shape is designed for quick time reading even with an open-worked dial.
    How should I care for the ceramic-style bezel and crystal?
    Wipe with a soft microfiber cloth. Avoid abrasive cleaners. For fingerprints, use a small amount of lens-safe cleaner on the cloth (not directly on the watch).
    Can the rubber strap be swapped or resized easily?
    The strap can be changed by a watchmaker using the correct tools. For best alignment and safety, we recommend professional installation.
    What should I do on the first day after delivery?
    Check the case, bezel screws, clasp operation, and chronograph start/stop/reset. Record a short video if you notice anything unusual so support can respond faster.
    How can I reduce time variation during wear?
    Keep it away from strong magnets, avoid impacts, and store it dial-up at night for more stable results. Consistent wearing habits also help.
    Tip: If you use a magnetic phone case, keep the watch on the opposite wrist.
  • Customer Reviews
    Smi******lip 2024-10-31

    Très belle montre . très proche de l'originale. replicafactory est le meilleur site de montres sur le marche des repliques. Trés bon service téléphonique. JJe recommande.

    Sae******or 2023-12-06

    Amazing watch best of Hublot , really want to have!!

30 Day Money-Back Guarantee

We're confident you'll love our products, so we're offering a no-risk, 30-day money-back guarantee. If our products don't meet your highest standards contact us!

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