Actor Yoson An spotted wearing a Oris

On the set of Lionsgate's 2023 action thriller Plane, New Zealand actor Yoson An — who plays co-pilot Dele — is seen wearing an Oris Big Crown ProPilot Altimeter on a military-green NATO strap, a prop choice that rewards close attention. Unlike most aviation-themed watches that stop at slide-rule bezels or chronograph functions, the ProPilot Altimeter is functionally distinctive: it uses a mechanical altimeter mechanism integrated directly into the watch case, with a rotating graduated ring indicating altitude in both feet and meters up to approximately 15,000 feet. The yellow and red markings visible on the inner bezel ring are characteristic hallmarks of this model.

The watch is driven by Oris Calibre 733, an automatic movement based on the ETA 2824-2 but modified with the proprietary altimeter module. The 47mm stainless steel case features a knurled crown at 3 o'clock — the signature 'Big Crown' element borrowed from Oris's vintage pilot heritage — plus a dedicated crown at 10 o'clock for rotating the altimeter bezel. The black dial with large Arabic numerals and broad luminous hands is legible under operational conditions, fulfilling genuine pilot-watch criteria.

From a collector's standpoint, the ProPilot Altimeter occupies an interesting niche: it is a serious technical instrument watch at a mid-tier Swiss price point, something the market rarely produces. Its functionality is not gimmickry — aneroid capsule altimeters predate digital aviation instruments and are still used as backups. That mechanical seriousness has given this reference a loyal following among tool-watch enthusiasts who value function over luxury signalling.

Yoson An, known internationally for his role as Li Shang in Disney's Mulan (2020), brings measured credibility to the co-pilot role in Plane, and his wardrobe team clearly selected the Oris deliberately. A Swiss automatic altimeter watch on a canvas strap reads as working aviator equipment, not costume jewellery.

At retail the ProPilot Altimeter sits around $3,000 USD, and the grey market generally tracks close to list given steady demand and limited discounting by Oris's authorised network. It remains one of the stronger value propositions in functional pilot watches.