Side by side
Sheffield Chrono IIvsSeiko Prospex SPEEDTIMER Mechanical Chronograph
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
12 of 29 specs differDiameter
Chrono II40mm
Prospex SPEEDTIMER Mechanical Chronograph42mm
Power Reserve
Chrono II—
Prospex SPEEDTIMER Mechanical Chronograph45h
Water Resistance
Chrono II100m
Prospex SPEEDTIMER Mechanical Chronograph100m
MSRP
Chrono II—
Prospex SPEEDTIMER Mechanical Chronograph$2,500
Full specifications
Case
3 specsDiameter
40mm
42mm
Thickness
13mm
14.6mm
Lug-to-Lug
48mm
49.5mm
Crystal & Dial
4 specsCrystal Shape
Flat
Curved
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Blue
Black
Lume
None
LumiBrite on hands and index(es)
Movement
4 specsCaliber
Seiko VK64
8R48
Type
Mecaquartz
Automatic
Power Reserve
—
45h
Jewels
25
34
Pricing
1 specsMSRP
—
$2,500
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