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The Encyclopedia of Horology

Wristwatch · Split-second chronograph

Hublot Big Bang Ayrton Senna Split-Second Chronograph

Partially verified

This Hublot Big Bang Ayrton Senna, reference 309, is a self-winding split-second chronograph produced in a limited edition of 500 pieces in 2008. The timepiece features an oversized 48 mm case constructed from a combination of black ceramic, titanium, and Kevlar, incorporating a ceramic bezel secured by six titanium nuts. The watch is powered by the calibre HUB 44SC automatic movement, which includes 27 jewels and a skeletonized rotor. The dial is black with applied steel Arabic numerals and baton indexes, complemented by red Ayrton Senna signature branding and a power reserve indicator. The watch is completed with a rubber strap featuring a stainless steel and ceramic deployant clasp, maintaining a water-resistant construction with a transparent case back secured by six screws.

The Hublot Big Bang Ayrton Senna Split-Second Chronograph, showing the dial, hands, and chronograph pushers.
The Hublot Big Bang Ayrton Senna Split-Second Chronograph, showing the dial, hands, and chronograph pushers. — Antiquorum. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
catalog.antiquorum.swiss
Category
Wristwatch · Split-second chronograph
Maker / attribution
Hublot
Reference
309
Catalogue / lot identifier
246
Source-reported date
2008
Source-reported place
Switzerland
Source-reported serial
705151

Source-reported attribution and specifications are not independent authentication. A listing does not establish present ownership, current display, availability or permission to reproduce.

Object description

Case and External Features

The watch is housed in an oversized three-body case measuring 48 mm in diameter and 15 mm in thickness. Its construction utilizes a blend of materials, specifically black ceramic, titanium, and Kevlar inserts on the sides. The bezel is crafted from ceramic and fixed to the case using six titanium nuts,

The case band incorporates a design element featuring the Brazilian flag, while the case back is transparent, secured by six screws, and bears the Ayrton Senna logo. The watch is completed with a stainless steel and ceramic deployant clasp.

Evidence for this section
  • “Three-body, polished and brushed, band with integrated Brazilian flag”
  • “ceramic bezel fixed by 6 titanium nuts”
  • “transparent case back with 6 screws and Ayrton Senna logo”

Dial and Timekeeping Functions

The dial is finished in black and serves as the primary canvas for the model's dedicated branding, including the red signature of Ayrton Senna. Time is displayed via applied steel Arabic numerals and baton indexes. The handset consists of steel skeletonized baton hands.

Functionally, the watch is a split-second chronograph featuring square push-buttons, subsidiary dials for seconds and 30-minute recording, and an additional power reserve indicator. An outer track displays minute and five-second increments.

Evidence for this section
  • “Black with red Ayrton Senna signature, applied steel Arabic numerals and baton indexes”
  • “subsidiary dials for the seconds, and 30-minute registers”
  • “power reserve indicator”

Movement and Technical Specifications

The watch is powered by the HUB 44SC automatic movement. This rhodium-plated calibre contains 27 jewels and utilizes a straight-line lever escapement. The movement is fitted with a monometallic balance, a shock absorber, and a self-compensating flat balance spring.

Technically, the calibre includes a hack mechanism and a skeletonized rotor visible through the case back. The auction description classifies the condition of both the movement and the watch exterior as 'as new'.

Evidence for this section
  • “HUB 44SC, rhodium-plated, 27 jewels, straight-line lever escapement”
  • “selfcompensating flat balance spring, skeletonized rotor, hack mechanism”
  • “Movement: 1 As new”

Open research questions

  • Does the accompanying biography detail the specific year of release for this edition?
  • Are there specific service requirements noted for the HUB 44SC calibre given the complexity of the split-second mechanism?

Source evidence

Recorded claims and source quotations for Hublot Big Bang Ayrton Senna Split-Second Chronograph
FieldSource-reported valueSource quotation
MakerHublot“Hublot, Genève”
Reference309“Ref 309”
Serial705151“case No. 705151”
Limited Edition486/500“No. 486/500”
MovementHUB 44SC“M. HUB 44SC”
Diameter48 mm“Diam. 48 mm”
MaterialBlack ceramic, titanium and Kevlar“black ceramic, titanium and Kevlar wristwatch”
ConditionGrade AA“Grading System Grade: AA”

Visible details

  • Features a signature of Ayrton Senna in red on the black dial
  • Includes a Brazilian flag detail integrated into the case band
  • Equipped with square-shaped pushers for the split-second chronograph function
  • Utilizes sapphire crystals on both the front and the case back

Research qualifications

  • The specific limited edition number 486/500 is mentioned in the text but not verified via external image of the case back
  • The long-term functional state of the automatic movement is not verified beyond the auction condition report

Photograph identity and source facts were screened before import; rights clearance remains pending.

Consulted source

Hublot - Ayrton Senna - Big Bang Split Hublot, Genève, "Big Bang, Ayrton Senna, Split-Second Chronograph, Automatic,' No. 486/500, case No. 705151, Ref 309. Made in a limited edition of 500 pieces in 2008. Fine and unusual, oversized, self-winding, water-resistant, black ceramic, titanium and Kevlar wristwatch with square button split-second chronograph, registers and a stainless steel and ceramic Hublot deployant clasp. Accompanied by the original fitted box, Ayrton Senna's biography, certificate of authenticity, warranty and instruction booklet.

Reviewed 2026-10-26 · Record d0db7ea267

Terms in this record

Glossary explanations for terms named in this object’s record.