Inspired by Wolbrook’s adventurous heritage, the JetFlyer® Automatic Chronograph brings together the iconic proportions of the original 1950s Skindiver® case with modern French watchmaking. Designed as a true tool-watch, it combines functional chronograph capability, mechanical sophistication, and everyday durability.

The stainless steel case measures 38 mm at the bezel (37 mm mid-case) with a thickness of 12.1 mm (14.3 mm including the glass box sapphire crystal) and a comfortable 46 mm lug-to-lug length. It features a screw-down crown and caseback ensuring 100 m water resistance, drilled lugs for easy strap changes, and a 120-click unidirectional rotating bezel combining a 60-minute dive scale with a 12-hour secondary time-zone indication.

The matte black dial focuses on clarity and functionality, with two chronograph subdials (30-minute and 12-hour counters), extended markers at 3, 6, and 9 minutes inspired by traditional telephone timing intervals, and a discreet tachymeter scale. C7 Super-LumiNova® X1 grade is applied to all hands and markers, including Wolbrook’s signature arrow-shaped minute hand and oversized “lollipop” chronograph seconds hand.

Powered by the Jeambrun PS 6402 automatic chronograph movement, beating at 28,800 vibrations per hour with a 55-hour power reserve, the watch showcases modern mechanical architecture. Through the exhibition caseback, the movement reveals its distinctive Armure de France finish — an interwoven hexagonal pattern symbolizing strength, precision, and French craftsmanship.

The JetFlyer® Chronograph is paired with a two-piece rally-style leather strap crafted from Italian vegetable-tanned leather and secured with a signed 316L stainless steel pin buckle.

SPECIFICATIONS

Specifications of the JetFlyer Automatic Chronograph, Black Dial with C7 X1 Super-LumiNova® and Steel Case

• Functions:
  • Hours / Minutes / Seconds / Chronograph
  • 30-minute and 12-hour chronograph counters
    
• Hands and dial:
  
  • C7 X1 Super-LumiNova® on all hands and indices
  • Signature arrow-shaped minute hand
  • Oversized “lollipop” chronograph seconds hand
  • Matte black dial with two chronograph subdials
  • Extended markers at 3, 6 and 9 minutes inspired by traditional telephone timing intervals
  • Discreet tachymeter scale
• Bezel:
  • 120 clicks
  • Unidirectional rotatable
  • 316L stainless steel
  • 60-minute dive scale and 12-hour secondary time-zone indication
  • BGW9 Super-LumiNova® X1 triangle at 12 o'clock
• Case:
  • 316L stainless steel construction
  • Polished chamfers
  • Screw-down crown
  • Screw-down caseback with sapphire
  • Glass box sapphire crystal
  • Drilled lugs for easy strap changes
  • Water resistance: 10 ATM / 100 m
• Dimensions:
  • 38 mm bezel diameter / 37 mm mid-case
  • 46 mm lug-to-lug
  • 12.1 mm thickness (14.3 mm including glass box sapphire crystal)
• Assembled in France
• Delivered with a green canvas & leather watch pouch

AUTOMATIC CHRONOGRAPH MOVEMENT

The JetFlyer® Chronograph is powered by the Jeambrun PS 6402, a modern automatic chronograph movement redesigned and assembled in France.

• Jeambrun PS 6402
  • Functions: hours, minutes, seconds, chronograph
  • Power reserve: approximately 55 hours
  • Frequency: 28,800 vibrations per hour (4Hz)
  • Column wheel chronograph architecture
  • Skeletonized balance bridge
  • Blued screws
  • Custom black PVD rotor with gold technical markings
  • Jewels: 41

• Finishing
  • Exclusive Armure de France hexagonal decorative pattern
  • Visible through the exhibition caseback
  • Symbolizing strength, precision and French craftsmanship

• In-house modifications and operations
  
  • Control and setting with a tolerance of ±15 s per day and a beat error of 0.6 ms
    

Discover the Jeambrun PS 6402 movement behind the JetFlyer.

RALLY LEATHER STRAP or BEADS OF RICE BRACELET

The JetFlyer® Chronograph is equipped with a two-piece rally-style leather strap crafted from Italian vegetable-tanned leather and secured with a signed 316L stainless steel pin buckle.

SPECIFICATIONS OF THE RALLY LEATHER STRAP

• Dimension & Size:
  • Long part length: 120 mm
  • Short part length: 75 mm
  • Lug width: 20 mm
  • Buckle width: 16 mm
• Material:
  • Vegetable-tanned Italian leather
  • Solid stainless steel pin buckle (316L)
• Construction:
  • Two-piece rally design
  • Durable stitching
  • Designed for everyday comfort and vintage motorsport aesthetics

SPECIFICATIONS OF THE STEEL BEADS-OF-RICE BRACELET

• Solid 316L stainless steel construction
• Fully brushed finish – machine milled and hand-brushed links
• Quick-release spring bars – fast and easy strap changes
• Solid deployant clasp:
  • Iconic NSA® ribbed design – scratch resistant
  • Double-pusher lock – secure yet easy to operate
  • 5 micro-adjustment positions
• Dimensions & Size:
  • Total length: 21 cm – fits wrists up to 24.5 cm
  • Taper: 20 mm (lugs) to 16 mm (clasp)
  • Clasp dimensions: 17.5 mm wide × 35 mm long
• Compatibility: Fits all Wolbrook tool-watches produced since 2019. Unfortunately, we cannot confirm compatibility with other watch brands.