Side by side
Sheffield 1A 40mmvsSeiko Prospex SPEEDTIMER
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
12 of 29 specs differDiameter
1A 40mm40mm
Prospex SPEEDTIMER41.4mm
Power Reserve
1A 40mm40h
Prospex SPEEDTIMER40h
Water Resistance
1A 40mm200m
Prospex SPEEDTIMER100m
MSRP
1A 40mm$228
Prospex SPEEDTIMER$750
Full specifications
Case
5 specsCategory
—
Chronograph
Diameter
40mm
41.4mm
Lug-to-Lug
48mm
45.9mm
Lug Width
20mm
21mm
Water Resistance
200m
100m
Crystal & Dial
4 specsCrystal Shape
Flat
Curved
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
—
Black
Lume
None
LumiBrite on hands and index(es)
Movement
2 specsCaliber
Seiko NH35
V192
Type
Automatic
Quartz
Pricing
1 specsMSRP
$228
$750
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 Sheffield 1A 40mm 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.
Sheffield 1A SCR II BluevsSeiko Prospex SPEEDTIMERSheffield 1AvsSeiko Prospex SPEEDTIMERSheffield 1A diver ~40mm 3-hand, Arabic numerals (12/3/6/9), no datevsSeiko Prospex SPEEDTIMERFilippo Loreti Watches The Joker MadnessvsSeiko Prospex SPEEDTIMERDryden Chrono Diver Gen 2vsSheffield 1A 40mmDryden Chrono Diver Series 1vsSheffield 1A 40mm