Side by side

Glycine Airman Worldtimer GMT Dual TimevsFormex Reef 39.5 mm

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

Reef 39.5 mm
FormexReef 39.5 mm
MSRP $2,230

At a glance

20 of 29 specs differ
Diameter
Airman Worldtimer GMT Dual Time40mm
Reef 39.5 mm39.5mm
Power Reserve
Airman Worldtimer GMT Dual Time
Reef 39.5 mm56h
Water Resistance
Airman Worldtimer GMT Dual Time100m
Reef 39.5 mm300m
MSRP
Airman Worldtimer GMT Dual Time$995
Reef 39.5 mm$2,230

Full specifications

Case

8 specs
Category
GMT
Diver
Diameter
40mm
39.5mm
Thickness
12mm
11mm
Lug-to-Lug
45.5mm
Lug Width
20mm
22mm
Finish
Brushed and polished
Water Resistance
100m
300m
Caseback
Solid

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Ivory
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
GMT, Date, World Time
None

Pricing

1 specs
MSRP
$995
$2,230

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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 Dual Time

Owners widely praise the Glycine Airman Worldtimer GMT Dual Time for its comfortable 40mm size, attractive aesthetics, blue GMT hand, sapphire crystal with blue AR coating, and locking bezel. Some owners find it a significant improvement over previous Airman models, with one reporting good timekeeping. However, the dual 24-hour and GMT hands are noted by some as making local time setting less intuitive than a purist 24-hour dial. On balance, owners and reviewers appreciate the Glycine Airman Worldtimer GMT Dual Time for its comfortable wearability and classic design elements.

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.

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