X-Wind Auto Chrono H77616533 Watch

The Watch
Born straight from the world of civil and military aviation, this pilot-instrument-inspired watch is a true showstopper - perfect for altitude enthusiasts and dreamers alike. For the professionals out there, it features a drift angle calculator, allowing pilots to precisely determine and log crosswinds during flight. Never get caught off guard by turbulence again! Color-wise, this timepiece blends classic tones - black, brown, and grey - for a retro-vintage look that channels the spirit of American aviators. Goose would definitely be jealous. The 316L stainless steel case measures 44mm for excellent in-flight legibility and is topped with a sapphire crystal. On the right side of the case, two screw-down crowns handle the drift angle calculator settings: the upper crown adjusts the measurement indicated by the red arrow on the inner bezel ring, while the lower crown repositions that inner ring. On the left, the screw-down crown sets the time, date, and day, while the lower pushbutton starts and stops the chronograph and the upper pushbutton resets it.
The bezel is bidirectional, rotating, and engraved. The caseback is secured with 4 screws and features a transparent display of the movement along with an angle illustration.

The Dial
In sleek black, this dial delivers functionality both in the air (drift angle calculator) and on the ground (chronograph). Against the dark backdrop, two silver-tone sub-dials with sunray finishes stand out beautifully - dedicated to the chronograph. The 12 o'clock counter measures elapsed time up to 12 hours, while the one at 6 o'clock tracks up to 30 minutes. At 3 o'clock, a black small seconds counter is ringed in white. All three hands are silver-tone and coated with SuperLuminova, ensuring legibility even in complete darkness. The hours are marked by Arabic numerals and white dot indices - both luminescent, just like the hands. A white minute track is also present. Finally, the date and day of the week are displayed in a double window on the left side of the dial, highly legible against a white background.

The Movement
This timepiece is powered by the Hamilton H-21 caliber, offering up to 60 hours of power reserve. Based on an ETA Valjoux 7750, it has been modified as follows:

- The balance spring is mirror-polished to improve precision and stability
- The mainspring has been upgraded to extend the power reserve to 60 hours (up from approximately 42 hours)
- The automatic system bridge is custom-decorated with interlocking "H" motifs.

The movement delivers hours, minutes, seconds, a 30-minute counter, a 12-hour counter, date, and day.
As noted above, a drift angle calculator is also included.

The Strap
This watch comes fitted with a brown leather strap with beige contrast stitching - a perfect vintage, air force-inspired look. It fastens with a silver-tone pin buckle. The lug width is 22mm. The strap reference is H600.776.103.

Water Resistance
This watch has been tested and rated to 10 atmospheres, equivalent to 100 meters of depth. It can be worn while swimming but is not suitable for scuba diving.