Side by side

Casio GA-900vsSeiko Prospex Rotocall

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

Add a watch
GA-900
CasioGA-900
MSRP $120
See the full GA-900
Prospex Rotocall
SeikoProspex Rotocall
MSRP $550
See the full Prospex Rotocall
Buy from Casio ↗
Buy used on eBay ↗
Buy from Seiko ↗
Buy used on eBay ↗

At a glance

13 of 29 specs differ
Diameter
GA-90049.5mm
Prospex Rotocall37mm
Power Reserve
GA-900—
Prospex Rotocall—
Water Resistance
GA-900200m
Prospex Rotocall100m
MSRP
GA-900$120
Prospex Rotocall$550

Full specifications

Case

7 specs
Diameter
49.5mm
37mm
Thickness
16.9mm
10.6mm
Lug-to-Lug
52.8mm
43.5mm
Lug Width
—
20mm
Material
Resin
Stainless Steel
Finish
—
—
Water Resistance
200m
100m

Crystal & Dial

3 specs
Crystal
Mineral
Hardlex
AR Coating
No
—
Dial Color
White
—

Movement

2 specs
Caliber
—
A824
Power Reserve
—
0h

Pricing

1 specs
MSRP
$120
$550
Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Citizen Donald Duck
Citizen
CitizenDisney Collection

Donald Duck

9 watches · 9 variantsDisney Collection
44mm·Solar·100m WR
$237MSRP
—Used
Vaer DS2 Meridian Quartz
Vaermicro
Meridian

DS2 Meridian Quartz

6 watches · 23 variantsMeridian
39mm·Quartz·150m WR
$239MSRP
—Used
Casio AEQ-110W
Casio
Casio

AEQ-110W

3 variantsCasio
48.2mm·Quartz·100m WR
$55MSRP
—Used
Yema Navygraf Marine Nationale Quartz
Yemamicro

Navygraf Marine Nationale Quartz

9 watches · 12 variantsNavygraf
39mm·Quartz·100m WR
$499MSRP
—Used
Smith & Bradley Lockdown
Smith & Bradley

Lockdown

3 variantsLockdown
48mm·Quartz
$40MSRP
—Used
Tissot T-Touch Connect Solar Jungfraubahn
Tissot

T-Touch Connect Solar Jungfraubahn

47.5mm·Quartz·100m WR
$1,250MSRP
—Used
Hemel HF1 Snelway
Hemelmicro
Snelway

HF1 Snelway

6 variantsSnelway
40mm·Quartz·100m WR
$200MSRP
—Used
Marathon Steel Navigator SSNAV-D Quartz
Marathonmicro
Pilot's Navigator

Steel Navigator SSNAV-D Quartz

6 watches · 6 variantsPilot's Navigator
41mm·Quartz
$1,300MSRP
—Used
All alternatives to the GA-900 →All alternatives to the Prospex Rotocall →
Explore the full catalog

Follow this matchup

Get a note when Casio GA-900 vs Seiko Prospex Rotocall gets more votes, a community discussion, or a price drop. No account needed.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.

Jorg Gray Watches JG9600vsSeiko Prospex RotocallRockwell Time Coliseum Fit (digital)vsSeiko Prospex RotocallSmith & Bradley LockdownvsSeiko Prospex RotocallRockwell Time Coliseum (Digital)vsSeiko Prospex RotocallCasio GA-900vsVaer DS2 Meridian QuartzVaer Tactical Field (DLC)vsCasio GA-900
Edit this comparisonAdd another watchMore sport comparisonsBest Sport Watches Under $500