Side by side
Orologi Calamai G-50 B CRONOvsSeiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
13 of 29 specs differDiameter
G-50 B CRONO40mm
Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition39.5mm
Power Reserve
G-50 B CRONO48h
Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition72h
Water Resistance
G-50 B CRONO50m
Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition200m
MSRP
G-50 B CRONO$3,364
Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition$1,150
Full specifications
Case
5 specsCategory
—
Chronograph
Diameter
40mm
39.5mm
Thickness
14.9mm
12mm
Lug-to-Lug
47.5mm
44.5mm
Water Resistance
50m
200m
Crystal & Dial
4 specsCrystal Shape
Flat
Curved
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Grey
Black
Lume
None
LumiBrite on hands and index(es)
Movement
3 specsCaliber
Valjoux 7750
6R55
Power Reserve
48h
72h
Jewels
25
24
Pricing
1 specsMSRP
—
$1,150
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