Side by side

Glycine Airman Worldtimer GMT Dual TimevsPeren One

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

One
PerenOne
MSRP $449

At a glance

16 of 29 specs differ
Diameter
Airman Worldtimer GMT Dual Time40mm
One40.6mm
Power Reserve
Airman Worldtimer GMT Dual Time
One
Water Resistance
Airman Worldtimer GMT Dual Time100m
One200m
MSRP
Airman Worldtimer GMT Dual Time$995
One$449

Full specifications

Case

7 specs
Category
GMT
Diameter
40mm
40.6mm
Lug-to-Lug
46mm
Lug Width
20mm
Finish
Brushed and polished
Water Resistance
100m
200m
Caseback
Solid

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Ivory
Dark Blue
Indices
Applied

Movement

4 specs
Caliber
RONDA 515.24H
Seiko VK64
Beat Rate
28,800 vph
Jewels
1
25
Complications
GMT, Date, World Time
None

Pricing

1 specs
MSRP
$995
$449

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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.

Peren One

The Peren One chronograph is praised for its successful blend of minimalist and '80s retro styles, featuring a clean bi-compax dial design and thoughtful case execution. It utilizes the reliable Seiko VK64 mecha-quartz movement, offering mechanical chronograph functions. The 40.6mm steel case provides 200m water resistance and a balanced, tool-first aesthetic with mixed finishing, complemented by the absence of a date and running seconds for a tidy dial. On balance, reviewers rate the Peren One highly for its retro-modern aesthetic and the value offered by its mecha-quartz movement.

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