Side by side
Seiko Prospex SPEEDTIMERvsStraton Straton Syncro MKII Mechanical Chrono
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
17 of 29 specs differDiameter
Prospex SPEEDTIMER39mm
Straton Syncro MKII Mechanical Chrono40mm
Power Reserve
Prospex SPEEDTIMER40h
Straton Syncro MKII Mechanical Chrono—
Water Resistance
Prospex SPEEDTIMER100m
Straton Syncro MKII Mechanical Chrono100m
MSRP
Prospex SPEEDTIMER$725
Straton Syncro MKII Mechanical Chrono$599
Full specifications
Case
6 specsDiameter
39mm
40mm
Thickness
13.3mm
12.4mm
Lug-to-Lug
45.5mm
48mm
Material
Stainless Steel
316L Stainless Steel
Finish
Brushed and polished
—
Caseback
Solid
Sapphire crystal
Crystal & Dial
5 specsCrystal Shape
Curved
Domed
AR Coating
Anti-reflective coating on inner surface
Underside
Dial Color
Black
—
Indices
Applied
—
Lume
LumiBrite on hands and index(es)
None
Movement
5 specsCaliber
V192
Seagull ST19
Type
Quartz
Manual
Beat Rate
28,800 vph
0 vph
Power Reserve
40h
0h
Jewels
25
0
Pricing
1 specsMSRP
$725
$599
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