Side by side

Glycine Airman Worldtimer GMTvsFormex Reef 39.5 mm

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

Airman Worldtimer GMT
GlycineAirman Worldtimer GMT
MSRP $1,395
Reef 39.5 mm
FormexReef 39.5 mm
MSRP $2,230

At a glance

19 of 29 specs differ
Diameter
Airman Worldtimer GMT42mm
Reef 39.5 mm39.5mm
Power Reserve
Airman Worldtimer GMT
Reef 39.5 mm56h
Water Resistance
Airman Worldtimer GMT100m
Reef 39.5 mm300m
MSRP
Airman Worldtimer GMT$1,395
Reef 39.5 mm$2,230

Full specifications

Case

7 specs
Category
GMT
Diver
Diameter
42mm
39.5mm
Thickness
14mm
11mm
Lug-to-Lug
45.5mm
Finish
Brushed and polished
Water Resistance
100m
300m
Caseback
Solid

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Black
Bahama Blue
Indices
Applied
Lume
None
Super-LumiNova

Movement

6 specs
Caliber
RONDA 515.24H
Sellita SW300-1
Type
Quartz
Automatic
Beat Rate
28,800 vph
Power Reserve
56h
Jewels
1
25
Complications
Date, World Time
None

Pricing

1 specs
MSRP
$1,395
$2,230

Follow this matchup

Get a note when Glycine Airman Worldtimer GMT vs Formex Reef 39.5 mm gets more votes, a community discussion, or a price drop. No account needed.

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.

Formex Reef 39.5 mm

The Formex Reef 39.5 mm is widely praised for its refined finishing, comfortable and well-proportioned case design, and impressive specifications for its price point, including COSC-certified Sellita SW300-1 movement and 300m water resistance. Owners and reviewers highlight the tool-less micro-adjust clasp and quick-release spring bars as practical features. Some reviewers note that the 22mm lug width feels slightly disproportionate to the smaller case, and the bracelet could benefit from more taper, though this is a point of contention for some owners who value the overall package. A prototype crown protrusion issue is noted as being addressed for production. On balance, owners and reviewers rate the Formex Reef 39.5 mm highly for its excellent value and well-executed design.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.