This mountainous 47mm wide Oris is truly gigantic in size at a whopping 47mm wide and has a substantial 17.7mm case depth. It is not only Oris's first watch of its kind; but, 'the world's first automatic watch with a mechanical altimeter'.
Oris Big Crown ProPilot Altimeter 47mm: Hands-On Review [01 733 7705 4134-07 5 23 14FC]
![Oris Big Crown ProPilot Altimeter 47mm: Hands-On Review [01 733 7705 4134-07 5 23 14FC] - Dial close up with watch on its side with crown up and venting crown activated](https://blog.thewatchsource.co.uk/wp-content/uploads/2016/08/orisc2a0big-crown-propilot-altimeter-47mm-hands-on-reviewc2a001-733-7705-4134-07-5-23-14fc-17.jpg?w=648)
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