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.
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