Home / Hublot Classic Fusion Chronograph 521.CM.7170.LR 45MM Mens
  • Front view of Hublot 521.CM.7170.LR showing blue chronograph dial, black case, and blue leather strap. - Front view
  • Hublot Classic Fusion Chronograph 521.CM.7170.LR 45MM Mens - Video
  • Close-up of Hublot 521.CM.7170.LR blue chronograph dial with two subdials and date window at 6 o'clock.
  • Angled dial view of Hublot 521.CM.7170.LR highlighting the sunray blue finish and bezel screws.
  • Angled front view of Hublot 521.CM.7170.LR showing chronograph pushers and blue strap integration.
  • Wrist-scale shot of Hublot 521.CM.7170.LR held in hand, showing full watch with blue strap.
  • Side profile of Hublot 521.CM.7170.LR showing case curvature and mid-case finish.
  • Side view of Hublot 521.CM.7170.LR showing crown and chronograph pushers on the right side.
  • Caseback view of Hublot 521.CM.7170.LR showing exhibition back and visible rotor.
  • Strap tail detail of Hublot 521.CM.7170.LR showing blue leather texture and sizing holes.
  • Clasp close-up of Hublot 521.CM.7170.LR showing deployant clasp with engraved branding.

Hublot Classic Fusion Chronograph 521.CM.7170.LR 45MM Mens

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  • Detail
    Brand: Hublot Replica
    Collection: Classic Fusion Chronograph
    Model Number: 521.CM.7170.LR
    Case Size: 45 mm
    Gender: Men's
    General
    Style: Luxury Sport Chronograph
    Edition Type: Classic Fusion Chronograph Layout
    Display: Analog
    Wearing Occasion: Business, Daily Wear, Evening
    Case
    Case Shape: Round
    Case Material: Black Ceramic-Style Finish
    Case Finish: Satin-Brushed with Polished Accents
    Bezel Type: Fixed Bezel
    Bezel Detail: 6 Signature Bezel Screws
    Crown Type: Push-Pull Crown with Logo Detail
    Pushers: Chronograph Start/Stop + Reset Pushers
    Crystal: Sapphire Crystal with Anti-Reflective Coating
    Case Back: Exhibition Case Back (Movement View)
    Caseback Fastening: Screw-Down Back Ring
    Dial
    Dial Color: Deep Blue
    Dial Finish: Sunray / Satin Gradient Effect
    Hour Markers: Applied Baton Indexes
    Hands: Polished Baton Hands
    Subdials: Two-Register Chronograph Counters
    Date Window: At 6 o'clock
    Minute Track: Printed Outer Minutes for Precise Reading
    Strap & Clasp
    Strap Material: Leather Strap with Rubber Lining
    Strap Finish: Alligator-Embossed Texture
    Strap Color: Blue
    Strap Stitching: Tone-on-Tone Blue Stitching
    Clasp Type: Folding Deployant Clasp
    Clasp Detail: Engraved Brand Marking
    Movement
    Movement Type: Automatic Mechanical Chronograph
    Caliber: 1:1 Clone Caliber HUB1143
    Power Reserve: Approx. 42 Hours
    Winding: Bi-Directional Automatic Winding
    Hacking Seconds: Yes
    Quickset Date: Yes
    Daily Accuracy: Deviation: Asian (± 30 - 60 sec/day), Swiss (± 15 - 30 sec/day), 1:1 Clone (± 2 - 5 sec/day)
    Functions
    Time: Hours, Minutes, Seconds
    Chronograph: Start/Stop/Reset Timing Function
    Date: Date Display at 6 o'clock
    Water Resistance
    Water Resistance: Asian: Daily splash resistant; Swiss: 30 meters; 1:1 Clone: 100 meters
    After-Sales Service
    Warranty: Asian: 1 Year / Swiss: 2 Years / 1:1 Clone: 5 Years
    Support: Remote Troubleshooting + Repair/Replacement Service
    QC: Function Check, Timing Check, Visual Inspection Before Shipping
    Package Includes: Watch, Protective Packing, Warranty Card
    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 Classic Fusion Chronograph 521.CM.7170.LR – 1:1 Clone Build

    The Hublot Classic Fusion Chronograph 521.CM.7170.LR features a deep blue chronograph dial, a black ceramic-style case, and a blue leather strap with rubber lining for a clean, modern wrist profile. Built with a 1:1 clone approach focusing on accurate proportions, sharp finishing, and reliable daily wear.

    Dial & Chronograph Presence

    • Blue sunray dial with two-register chronograph layout
    • Applied baton markers and polished hands for crisp readability
    • Date window at 6 o’clock to keep the dial balanced

    Case & Strap Harmony

    • Black ceramic-style case with signature bezel screw design
    • Blue leather strap with rubber lining for comfort and grip
    • Deployant clasp for secure daily wearing
    • True 1:1 clone build focused on case shape, bezel screw placement, and dial proportions.
    • Blue sunray chronograph dial delivers a clean two-register layout with balanced date at 6 o’clock.
    • Black ceramic-style finishing with sharp brushing and polished transitions for a premium look.
    • 1:1 Clone Caliber HUB1143 provides a smooth automatic chronograph experience for daily wear.
    • Sapphire crystal with anti-reflective coating improves clarity under strong light.
    • Blue leather strap with rubber lining offers comfort, stability, and a modern sporty feel.
    • Exhibition case back showcases the movement details for collectors who love mechanics.

    FAQ

    Quick answers about chronograph use, care tips, and service process.

    Is the chronograph fully functional on this model?
    Yes. The timing pushers operate the chronograph start/stop and reset functions, and the subdials respond accordingly under normal use.
    How do I operate the chronograph correctly?
    Use the upper pusher to start/stop timing. Use the lower pusher to reset only after the chronograph is stopped.

    Avoid resetting while the chronograph is running to reduce internal stress.

    Can I adjust the date quickly, and is there anything to avoid?
    The date can be adjusted via the crown quickset position. For best practice, avoid quickset adjustments during late-night hours when the calendar mechanism may be engaged.
    How should I care for the blue leather strap for long-term wear?
    Keep the leather away from prolonged moisture and chemicals. Wipe gently with a soft cloth after wear. Store the watch in a dry place and avoid strong direct sunlight for extended periods.
    Do you offer strap sizing or replacement options?
    Yes. We can help confirm fit guidance and provide replacement strap options if you want a different color or material style.
    What should I do if the watch arrives with a minor issue?
    Contact support with your order number and clear photos/videos. We will troubleshoot step-by-step and arrange the best solution if service is needed.
    Do you recommend a pressure test before water activities?
    Yes. Shipping impact and temperature changes can affect sealing. A local pressure test is recommended before swimming or frequent water exposure.
  • Customer Reviews
    Smi******vor 2024-11-05

    Cooooool

    Sal*******acey 2023-10-17

    Had this watch for more than a month now. Has kept perfect time. People compliment the watch everywhere I go. So far the quality has been great. Took around a week for the watch to get delivered. Great service.

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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