Side by side
Casio EFK-110DvsSeiko Prospex SPEEDTIMER
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
13 of 29 specs differDiameter
EFK-110D38mm
Prospex SPEEDTIMER39mm
Power Reserve
EFK-110D—
Prospex SPEEDTIMER40h
Water Resistance
EFK-110D100m
Prospex SPEEDTIMER100m
MSRP
EFK-110D$300
Prospex SPEEDTIMER$725
Full specifications
Case
6 specsDiameter
38mm
39mm
Thickness
11.8mm
13.3mm
Lug-to-Lug
43mm
45.5mm
Lug Width
—
20mm
Finish
—
Brushed and polished
Caseback
—
Solid
Crystal & Dial
3 specsCrystal Shape
Flat
Curved
AR Coating
No
Anti-reflective coating on inner surface
Lume
None
LumiBrite on hands and index(es)
Movement
3 specsCaliber
—
V192
Power Reserve
—
40h
Jewels
0
25
Pricing
1 specsMSRP
$300
$725
More watches worth a look
Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.
Follow this matchup
Get a note when Casio EFK-110D vs Seiko Prospex SPEEDTIMER gets more votes, a community discussion, or a price drop. No account needed.
People also compared
Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.









