Casio GMB2100GD-5AvsTAG Heuer Aquaracer Professional 200 Solargraph

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Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Casio GMB2100GD-5A at true scale

GMB2100GD-5A

TAG Heuer Aquaracer Professional 200 Solargraph at true scale

Aquaracer Professional 200 Solargraph

Diameter

44.4mm

40mm

Thickness

12.8mm

n/a

Water Resistance

200m

200m

MSRP

$600

lowest

$3,600

Movement

5691

TAG Heuer TH50-00

Case

5 specs
Diameter
44.4mm
40mm
Thickness
12.8mm
n/a
Lug-to-Lug
n/a
n/a
Lug Width
n/a
n/a
Finish
n/a
Steel Fine-Brushed/Polished

Crystal & Dial

2 specs
Crystal
Mineral
n/a
Dial Color
n/a
Blue

Movement

4 specs
Caliber
5691
TAG Heuer TH50-00
Hacking
No
Yes
Hand-winding
No
Yes
Complications
None
Date

Pricing

1 specs
MSRP
$600
$3,600
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Reviews

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Casio GMB2100GD-5A

Owners note the Casio GM-S2110BP-5A's strap gets dirty easily but cleans well, and the watch itself resists scratches during frequent wear. Some owners lament the lack of a positive display and find the lume could be brighter. A metal conversion kit is available, transforming the watch into a daily wearer. Overall, owners appreciate the Casio GM-S2110BP-5A for its scratch resistance and the potential for customization via modding kits.

TAG Heuer Aquaracer Professional 200 Solargraph

Owners widely praise the TAG Heuer Aquaracer Professional 200 Solargraph for its rugged, sandblasted titanium case and bracelet, excellent lume, and unique solar dial. Reviewers highlight the innovative solar-powered movement, which offers six months of power from 20 hours of charging and eliminates battery changes, alongside its comfortable and approachable tool-like aesthetic. Some owners find the watch overpriced, citing issues with bracelet pins on specific models and a perceived cheapness of the strap and buckle on certain variants. The solar quartz movement's accuracy is noted as +/- 15 seconds per month, with some wishing for a higher-precision thermocompensated quartz. On balance, owners and reviewers rate the TAG Heuer Aquaracer Professional 200 Solargraph highly for its innovative solar movement and comfortable, tool-like titanium construction.

From video reviewers

The solar-powered quartz movement is a key functional advantage. The lightweight titanium case is a notable strength. The price point is considered substantial for a solar quartz movement.

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