Oris ProPilot X Calibre 400 01 400 7778 7153

In-Depth Review

# Oris ProPilot X Calibre 400 Editorial

When Oris introduced the Calibre 400 movement in 2021, the Swiss manufacture made a statement about independent watchmaking. The ProPilot X, powered by this in-house caliber, represents a rare achievement at the three-thousand-dollar mark: a genuinely compelling alternative to quartz-dependent pilot watches from larger conglomerates. The 120-hour power reserve alone justifies attention, allowing owners to leave the watch unwound for nearly five days without loss of accuracy. Paired with a titanium case measuring 39mm and a skeleton dial that showcases Oris's finishing work, this is a tool watch built with visible pride in its construction. The fixed polished bezel and sapphire crystal provide practical robustness, while the 100-meter water resistance confirms this is a watch designed for real use, not posturing.

The ideal ProPilot X owner understands that pilot watches need not be military-spec or novelty pieces. This appeals to professionals who appreciate mechanical reliability without the six-figure price tags of Rolex or Tudor, and to collectors who value in-house movements as a marker of brand commitment. The skeleton dial particularly attracts those who enjoy the visual narrative of horology—knowing what drives your watch matters as much as knowing it keeps time.

In its segment, the ProPilot X occupies thoughtful middle ground. The Tudor Black Bay GMT offers Swiss heritage and better water resistance but relies on ETA-derived movements. Conversely, Longines's Pilot Big Eye delivers quartz precision at lower cost, sacrificing the mechanical satisfaction that justifies Oris's current market price around $3,300. For those prioritizing authentic manufacture and extended power reserves, the choice becomes clear.