Reference 6804-0400 belongs to H. Moser & Cie.'s Streamliner collection, here realized entirely in 18k rose gold (750/-). The 40 mm case measures 12.1 mm in thickness and is fitted with a polished rose gold bezel, a domed sapphire crystal with anti-reflective coating, and a see-through sapphire caseback. Water resistance is rated to 12 ATM (120 meters / 400 feet), and the watch is secured on an integrated 18k rose gold bracelet with a rose gold folding clasp with push-buttons.
The dial is formed from Vantablack®, an ultra-black material that absorbs nearly all incoming light. Against this void-like surface, the one-minute flying tourbillon is the sole focal point, appearing to hover freely while displaying hours and minutes. Power comes from the HMC 804 Manufacture Calibre, an automatic movement offering a 72-hour power reserve.
This example carries individual number 200131988 and movement number 200035998, and is offered in unworn condition.