The Skindiver WT Automatic has straddled sea and sky since the late 1950s, built as a genuine crossover between dive watch and pilot's instrument. This Aéro-Club de France edition carries that dual identity forward with a blue dial marked by the club's emblem and finished in C3 Super-LumiNova for low-light legibility, plus a decimeter scale on the outer ring — dividing each hour into 100ths rather than 60, a format pilots use for quick fuel and speed math in the cockpit. Wolbrook is an official supplier to the Aéro-Club de France, and a share of each sale supports the club's public-interest mission; the promotion aerospace activities

The case is 40mm across, 48mm lug-to-lug, 13.2mm thick, with a 20mm lug width, machined from hand-finished brushed 316L stainless steel and built on Wolbrook's HexapleX architecture — a mono-bloc middle case with 3D rubber shock absorbers that let the movement "float" inside its holder, shielding it from impact. A domed, glass-box sapphire crystal with inside anti-reflective coating sits up top, and both the crown and caseback screw down to hold 150m/15 ATM of water resistance. Drilled lugs make strap swaps straightforward, and the caseback has room to laser-engrave a name or personal line. This build is fitted to the dark blue Tropic rubber strap.

Power comes from a Citizen/Miyota 8315 automatic movement with roughly 60 hours of power reserve and a hacking seconds function, regulated to a ±15-second daily tolerance and 0.6ms beat error. Like all Wolbrook watches, it's assembled by hand in France, near Besançon, with a customized "roulette"-style date disk regulated in-house.