# Glycine Airman 18 GMT GL0226 Review by A.I. WatchMetrics

## Watch Summary
The Glycine Airman 18 GMT GL0226 is a heritage-inspired pilot travel watch in a compact 39mm stainless steel case, featuring a bi-directional 24-hour GMT bezel, a distinctive independently adjustable red-capped GMT hand for true "home time" tracking, a clean black dial with applied Arabic numerals and Super-LumiNova indices, and the automatic GL224 movement offering 42 hours of power reserve, perfectly suited for modern adventurers and frequent flyers who appreciate Swiss aviation legacy without excess bulk.

## Overall Watch Rating: 7.8/10.0

**History & Innovation Metric (9.2/10.0)** - Pioneering the world's first traveler's GMT in 1953, Glycine earns elite marks comparable to early IWC pilots for revolutionary dual-time functionality.
**Dials & Design Metric (8.9/10.0)** - The iconic aviation layout with bold numerals and crisp lume rivals Omega's pilot dials in legibility and timeless appeal.
**Versatility Metric (8.7/10.0)** - Excels across travel, casual, and adventure scenarios much like a Tudor Black Bay GMT, transitioning seamlessly from boardroom to cockpit.
**Material Metric (9.4/10.0)** - Premium sapphire with AR coating and robust brushed/polished steel construction matches the durability of mid-tier Sinn divers.
**Movement Metric (8.1/10.0)** - The in-house tuned GL224 automatic delivers reliable GMT performance on par with Sellita-powered Oris divers.
**Functions Metric (7.5/10.0)** - Solid core timekeeping plus date and dual-zone GMT provides everyday utility akin to entry-level Longines Spirits.
**Brand Metric (6.5/10.0)** - Glycine's Swiss aviation heritage elevates it above standard mid-tier like Hamilton, though shy of luxury prestige.
**Complications Metric (6.8/10.0)** - Effective GMT and date implementation performs well against similar features in Nomos Club Campus models.
**Rarity Metric (5.1/10.0)** - Moderately accessible pricing and production places it similarly to standard Tudor Rangers in exclusivity.

## Total Performance Score (TPS): 7.5

## WM Collector Grade: B+

## Performance Insights: Excels in history, design, and materials for strong heritage value, while movement and versatility provide excellent daily usability at a price well below implied fair market positioning.

## TPS Interpretation: Good Value: This watch punches above its weight with proven GMT innovation and versatile pilot styling tailored to its price class.

## Watch Data
[https://glycine-watch.ch/wp-content/uploads/2023/07/Airman18_GL0226_1.jpg] - [https://glycine-watch.ch/wp-content/uploads/2023/07/Airman18_GL0226_2.jpg] - [-] - [Airman 18 GMT] - [Glycine] - [Airman 18 GMT] - [Switzerland] - [https://glycine-watch.ch/collections/airman/products/airman-18-gl0226] - [-] - [Automatic] - [GL224] - [1] - [Compact 39mm aviation GMT watch with bi-directional bezel, independent red GMT hand, black dial, and leather strap for traveler's convenience.] - [39] - [47] - [11.7] - [20] - [100] - [42] - [28800] - [Super-LumiNova] - [31] - [Stainless Steel] - [Sapphire AR] - [Bi-directional 24h GMT] - [Sapphire display] - [Screw-down] - [Louisiana Alligator Leather] - [Round] - [Black applied markers] - [Yes] - [Yes] - [No] - [No] - [No] - [No] - [No] - [No] - [No] - [No] - [No] - [No] - [No] - [Yes] - [No] - [No] - [No] - [No] - [No] - [No] - [No] - [No] - [Yes] - [No] - [No] - [No] - [No] - [No] - [No] - [No] - [No] - [No] - [No] - [No] - [No] - [Yes] - [Yes] - [Yes] - [Yes] - [Yes] - [Yes] - [No] - [Yes] - [No] - [No] - [No] - [No] - [No] - [7.5] - [B+] - [2200];

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