Side by side
Lucky Harvey Black Slots MachinevsSeiko Prospex SPEEDTIMER Mechanical Chronograph
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
13 of 29 specs differDiameter
Black Slots Machine43mm
Prospex SPEEDTIMER Mechanical Chronograph42mm
Power Reserve
Black Slots Machine40h
Prospex SPEEDTIMER Mechanical Chronograph45h
Water Resistance
Black Slots Machine30m
Prospex SPEEDTIMER Mechanical Chronograph100m
MSRP
Black Slots Machine$1,199
Prospex SPEEDTIMER Mechanical Chronograph$2,500
Full specifications
Case
6 specsCategory
—
Chronograph
Diameter
43mm
42mm
Thickness
11mm
14.6mm
Lug-to-Lug
—
49.5mm
Lug Width
22mm
20mm
Water Resistance
30m
100m
Crystal & Dial
3 specsCrystal Shape
Flat
Curved
AR Coating
Inner
Anti-reflective coating on inner surface
Lume
None
LumiBrite on hands and index(es)
Movement
3 specsCaliber
Lucky Harvey in-house automatic caliber
8R48
Power Reserve
40h
45h
Jewels
25
34
Pricing
1 specsMSRP
$1,199
$2,500
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