Casio G-Shock GMA-P2100 Series 40.2mm

Reference: GMA-P2100ST-9A | Yellow gold dial on a resin strap

4
1 ratings 1 reviews
Case diam.
40.2 mm
Lug to lug
46 mm
Height
11.2 mm
My rating:

Specifications

Base

Brand
Collection
Watch style

Build

Case shape
Other
Case diameter
40.2 mm
Case height
11.2 mm
Lug to lug
46 mm
Weight
40 g
Water resistance
200 m
Case materials
Resin
Bracelet materials
Resin

Visuals

Dial color
Case color
Beige
Band color
Beige

Movement

Caliber
Type
Quartz
Power reserve
26298 hours

Other watch features

Videos

Be the first to add a great video of this watch!

It gets better when you sign in

Google Continue with Google Sign up with email

Personalized recommendations (coming soon)

Get recommendations based on your tastes

Discover cool watches and underdogs

Not all great watches get the attention they deserve

Keep track of your wish list and watches you like

And the full collection for that matter

Use your expertise to help others

All of us would like to hear from actual owners

Wrist size and fit

Estimates or votes not yet available.

5 12.7
5.5 13.9
6 15.2
6.5 16.5
7 17.7
7.5 19
8 20.3
8.5 21.5
9 22.8
IN
Too small
Good fit
Too big
CM
Estimated based on specs
Real usage data
My size finder

Where to buy

We may earn a commission when you buy through some of these links.

Variations

Reviews

What do you think?

Help others decide if this watch is for them

Rate this watch
Write a Review
media-libraryq3kWoe
Tafline wrist 6.10"/15.50cm
★★★★★
★★★★★
May 5, 2025

As a kid in the early 2000's, I remember Baby G and G shocks as my first watches for school. I wore them until the bands broke. Now as an adult, I've finally got my hands on a new and more modern version of the G shock I grew up with, the Casio Oak. I was gifted this watch from my Mother-in-Law for my birthday this year and it is very special to me. I wear it when I'm at home or going out for a hike. It is perfect for all my casual outfits. My toddler also loves the pop of color. The world timer also makes it easy to set with the choice of summer time and not. The alarm, timer, and stopwatch are also very practical. I've used this more than my diver watch since I've had it since it is more comfortable to wear all day. Unfortunately , resin straps are my least favorite so I wish I could change it to something more comfortable. Although it's a personal choice as I'm someone who prefers a bracelet or a leather band. It is very good value for money as it is always on sale on Amazon or the local department store. I believe everyone should own a G shock! :-)

Where not available in the original review, star ratings on external reviews are editorially given by Chronotick based on the sentiment of the review.