Side by side

Glycine Airman Worldtimer GMTvsMarathon CeraShell Pilot's Navigator

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Glycine Airman Worldtimer GMT

Owners widely appreciate the Glycine Airman Worldtimer GMT for its comfortable 40mm size, attractive aesthetics, and value, particularly when found under $300. Some owners find the dual 12-hour and 24-hour dial and bezel useful for tracking three time zones, while others prefer a simpler 24-hour dial. One owner noted the GMT hand can be mistaken for the minute hand and that the ETA movement can have a misaligned GMT hand. On balance, owners value the Glycine Airman Worldtimer GMT for its comfortable wearability and strong value proposition.

Marathon CeraShell Pilot's Navigator

Owners widely praise the Marathon Pilot's Navigator for its exceptional accuracy, with sources citing its ETA F06.412 quartz movement as keeping time within 10 seconds per year. Reviewers and owners alike highlight its classic pilot's watch design, comfortable 41mm steel case, and the constant illumination provided by tritium gas tubes. Some owners find the watch a great value, particularly at lower price points, while others express concern over the $800 price for the steel version. A few commenters noted the date window placement as undesirable, and one owner mentioned fixed spring bars limiting strap choices. On balance, owners and reviewers rate the Marathon Pilot's Navigator highly for its robust tritium lume and outstanding accuracy at its price point.

At a glance

18 of 29 specs differ
Diameter
Airman Worldtimer GMT42mm
CeraShell Pilot's Navigator41mm
Power Reserve
Airman Worldtimer GMT
CeraShell Pilot's Navigator
Water Resistance
Airman Worldtimer GMT100m
CeraShell Pilot's Navigator60m
MSRP
Airman Worldtimer GMT$1,395
CeraShell Pilot's Navigator$550

Full specifications

Case

9 specs
Category
GMT
Pilot
Diameter
42mm
41mm
Thickness
14mm
11.5mm
Lug-to-Lug
48mm
Lug Width
22mm
20mm
Material
Stainless Steel
CeraShell (bio-sourced composite)
Finish
Water Resistance
100m
60m
Caseback

Crystal & Dial

3 specs
Crystal Shape
AR Coating
Indices

Movement

5 specs
Caliber
Ronda 515.24H
ETA F06
Beat Rate
0 vph
Power Reserve
0h
Jewels
1
0
Complications
Date, World Time
None

Pricing

1 specs
MSRP
$1,395
$550
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