Side by side

Glycine Airman Worldtimer GMTvsGrand Seiko SBGN027

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.

Grand Seiko SBGN027

Owners widely praise the Grand Seiko SBGN027 for its exceptional Zaratsu polishing, compact 39mm size, and versatile monochrome aesthetic, noting its thin profile and suitability as a grab-and-go watch. The 9F quartz movement delivers highly accurate timekeeping, with one owner reporting +/- 10 seconds per year. However, some find the lume limited, the bracelet lacks micro-adjustments, and the GMT hand can be easily mistaken for the minute hand. One owner reported a black index on the bezel disappearing after a couple of months. On balance, owners rate the Grand Seiko SBGN027 highly for its premium finishing and accurate HAQ GMT movement in a wearable size.

At a glance

18 of 29 specs differ
Diameter
Airman Worldtimer GMT42mm
SBGN02739mm
Power Reserve
Airman Worldtimer GMT
SBGN027
Water Resistance
Airman Worldtimer GMT100m
SBGN027200m
MSRP
Airman Worldtimer GMT$1,395
SBGN027$3,700

Full specifications

Case

7 specs
Diameter
42mm
39mm
Thickness
14mm
12.3mm
Lug-to-Lug
45.9mm
Lug Width
22mm
19mm
Finish
Water Resistance
100m
200m
Caseback

Crystal & Dial

5 specs
Crystal
Sapphire
Crystal Shape
AR Coating
Yes
Dial Color
Black
Indices

Movement

5 specs
Caliber
RONDA 515.24H
9F86
Beat Rate
0 vph
Power Reserve
0h
Jewels
1
0
Complications
Date, World Time
None

Pricing

1 specs
MSRP
$1,395
$3,700
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