# Oris Big Crown ProPilot GMT Review by A.I. WatchMetrics

## Watch Summary
The Oris Big Crown ProPilot GMT is a robust pilot-style sports watch with GMT functionality, featuring a 44mm stainless steel case, black dial with applied indices and oversized crown for gloved use, targeting aviation enthusiasts and frequent travelers who appreciate legible dials and dual time zones via a distinctive red GMT hand and inner rotating bezel, powered by the automatic Oris Calibre 798 with a 42-hour power reserve.

## Overall Watch Rating: 7.7/10.0

**Material Metric (9.3/10.0)** - Premium stainless steel construction with sapphire crystal and anti-reflective coating rivals higher-end tool watches like the Omega Seamaster.
**Dials & Design Metric (8.7/10.0)** - Iconic Big Crown aesthetics and excellent legibility with Super-LumiNova match the pilot heritage of brands like Breitling.
**Versatility Metric (8.5/10.0)** - Seamlessly transitions from office to adventure as a travel companion, akin to the Rolex GMT-Master II.
**Brand Metric (8.0/10.0)** - Oris offers reliable entry-level luxury on par with Tudor, bolstered by aviation legacy.
**History & Innovation Metric (8.0/10.0)** - Deep roots in 1930s pilot watches with practical GMT execution echo IWC's Mark series traditions.
**Movement Metric (7.5/10.0)** - Solid Sellita-based automatic with GMT performs reliably like many Tag Heuer calibers.
**Functions Metric (6.8/10.0)** - Core timekeeping plus date and GMT delivers everyday utility similar to entry Seiko divers.
**Complications Metric (6.5/10.0)** - Functional GMT complication provides solid dual-time utility on level with mid-tier Longines.
**Rarity Metric (6.2/10.0)** - Moderately exclusive at its price point, comparable to standard-production Hamilton Khakis.

## Total Performance Score (TPS): 9.9

## WM Collector Grade: A+

## Performance Insights: Excels in materials, design, and versatility while movement and rarity are solid but unexceptional, delivering outstanding value well above its implied price of $2850.

## TPS Interpretation: Outstanding Value: The watch dramatically outperforms expectations for its price with premium build and practical pilot GMT features.

## Watch Data
[https://www.oris.ch/media/catalog/product/0/1/01_798_7754_4134-07_8_24_05peb_1_1.jpg] - [Front view of Oris Big Crown ProPilot GMT black dial]; [https://www.oris.ch/media/catalog/product/b/a/back_01_798_7754_4134-07_8_24_05peb.jpg] - [Stainless steel screw-down caseback]; [https://www.oris.ch/media/catalog/product/l/u/lume_01_798_7754_4134-07_8_24_05peb.jpg] - [Super-LumiNova on hands and indices glowing]; [Big Crown ProPilot GMT] - [Big Crown ProPilot GMT]; [Oris] - [Oris]; [Big Crown ProPilot GMT] - [Big Crown ProPilot GMT]; [Switzerland] - [Switzerland]; [https://www.oris.ch/en/watchfinder/big-crown-propilot-gmt/01-798-7754-4134-07-8-24-05PEB/] - [https://www.oris.ch/en/watchfinder/big-crown-propilot-gmt/01-798-7754-4134-07-8-24-05PEB/]; [https://www.ablogtowatch.com/oris-big-crown-propilot-gmt-watch/] - [https://www.ablogtowatch.com/oris-big-crown-propilot-gmt-watch/]; [Mechanical - Self-Winding] - [Mechanical - Self-Winding]; [Oris Calibre 798] - [Oris Calibre 798]; [# Secondary] - [1]; [Aviation-inspired 44mm pilot GMT with independent 24-hour hand, inner rotating bezel, and date window] - [Aviation-inspired 44mm pilot GMT with independent 24-hour hand, inner rotating bezel, and date window]; [44] - [44]; [51.5] - [51.5]; [12.4] - [12.4]; [22] - [22]; [100] - [100]; [42] - [42]; [28800] - [28800]; [Super-LumiNova] - [Super-LumiNova]; [25] - [25]; [Stainless Steel] - [Stainless Steel]; [Sapphire, anti-reflective coating inner surface] - [Sapphire, anti-reflective coating inner surface]; [Fixed stainless steel with ceramic GMT scale insert] - [Fixed stainless steel with ceramic GMT scale insert]; [Stainless steel screw-down] - [Stainless steel screw-down]; [Screwable oversized crown] - [Screwable oversized crown]; [Brown leather strap with stainless steel buckle] - [Brown leather strap with stainless steel buckle]; [Round] - [Round]; [Black with applied indices] - [Black with applied indices]; [yes] - [yes]; [yes] - [yes]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [yes] - [yes]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [yes] - [yes]; [yes] - [yes]; [no] - [no]; [yes] - [yes]; [yes] - [yes]; [yes] - [yes]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [no] - [no]; [yes] - [yes]; [yes] - [yes]; [yes] - [yes]; [yes] - [yes]; [9.9] - [9.9]; [A+] - [A+]; [2850] - [2850];

**A.I. WatchMetrics Review v37.4 Grok 4 Fast. December 19, 2025.**