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Casio GBM-2100AvsDuxot Atlantica Diver Automatic

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

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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.

Casio GBM-2100A

The premium stainless steel bezel and Bluetooth connectivity are highlighted strengths. The increased mass from the metal bezel is noted as a potential drawback for some wearers. Reviewers differ on its value proposition compared to other G-Shock models.

Duxot Atlantica Diver Automatic

Owners widely praise the Duxot Atlantica Diver Automatic as a great value daily wearer, with many finding it a happy purchase. Reviewers note well-aligned bezel markings and adequate lume. Owners report the automatic NH35 movement keeps decent time, losing about 12 seconds per day. The 42mm case is considered a good size for daily wear. However, reviewers consistently flag the stiff rotating bezel and the stamped bracelet with pin links as jangly and uncomfortable compared to higher-end options. Overall, owners rate the Duxot Atlantica Diver Automatic highly for its value and daily wearability, despite minor comfort issues with the bracelet.

At a glance

15 of 29 specs differ
Diameter
GBM-2100A44.4mm
Atlantica Diver Automatic42mm
Power Reserve
GBM-2100A
Atlantica Diver Automatic
Water Resistance
GBM-2100A200m
Atlantica Diver Automatic200m
MSRP
GBM-2100A$280
Atlantica Diver Automatic$159

Full specifications

Case

6 specs
Category
Sport
Diver
Diameter
44.4mm
42mm
Thickness
11.9mm
13mm
Lug-to-Lug
49.3mm
50mm
Material
Bio-based Resin / Stainless steel
Stainless Steel
Finish
Stainless Steel

Crystal & Dial

3 specs
Crystal
Mineral
Sapphire
AR Coating
No
Dial Color
Silver
Black

Movement

5 specs
Caliber
Seiko NH35
Type
Quartz
Automatic
Power Reserve
0h
Hacking
No
Yes
Hand-winding
No
Yes

Pricing

1 specs
MSRP
$280
$159
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