Side by side

Casio GBM-2100AvsBoldr Rally

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

GBM-2100A
CasioGBM-2100A
MSRP $280
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.

Boldr Rally

Owners widely praise the Boldr Rally's compact 38mm titanium case and excellent value under A$500. The VK64 mecaquartz movement has proven reliable for years, and the sapphire crystal is a welcome feature. Some owners find the dial busy and difficult to read, particularly the black hands against the black subdial, and note the bead-blasted titanium case can be a scratch magnet. The default straps have been described as boring or not holding up to daily wear. Overall, owners rate the Boldr Rally highly for its robust titanium construction and excellent value, despite some legibility concerns.

From video reviewers

The 38mm titanium case with a 44mm lug-to-lug measurement provides a comfortable and compact fit. The 200m water resistance is noted as robust for a chronograph. The 14mm thickness was mentioned as potentially substantial for the watch's size.

At a glance

14 of 29 specs differ
Diameter
GBM-2100A44.4mm
Rally38mm
Power Reserve
GBM-2100A
Rally
Water Resistance
GBM-2100A200m
Rally200m
MSRP
GBM-2100A$280
Rally$299

Full specifications

Case

7 specs
Category
Sport
Chronograph
Diameter
44.4mm
38mm
Thickness
11.9mm
12.2mm
Lug-to-Lug
49.3mm
44mm
Lug Width
20mm
Material
Bio-based Resin / Stainless steel
Titanium
Finish

Crystal & Dial

4 specs
Crystal
Mineral
Sapphire
AR Coating
No
Yes
Dial Color
Silver
I - Wells 008 (Updated)
Lume
None
Super-LumiNova

Movement

2 specs
Caliber
Seiko VK64
Power Reserve
0h

Pricing

1 specs
MSRP
$280
$299
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