Orologi Calamai G50 Freccia StonevsSeiko Prospex Speedtimer Mechanical Chronograph
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Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

G50 Freccia Stone

Prospex Speedtimer Mechanical Chronograph
Diameter
39mm
42mm
Lug-to-Lug
47.5mm
lowest
49.5mm
Thickness
14.4mm
lowest
14.6mm
Water Resistance
50m
100m
highest
Power Reserve
48h
highest
45h
MSRP
n/a
$2,500
Movement
Sellita SW510
Seiko 8R48
Case
4 specsDiameter
39mm
42mm
Thickness
14.4mm
14.6mm
Lug-to-Lug
47.5mm
49.5mm
Water Resistance
50m
100m
Crystal & Dial
3 specsCrystal Shape
n/a
Curved
AR Coating
n/a
Anti-reflective coating on inner surface
Lume
None
LumiBrite on hands and index(es)
Movement
3 specsCaliber
Sellita SW510
Seiko 8R48
Power Reserve
48h
45h
Jewels
0
34
Pricing
1 specsMSRP
n/a
$2,500
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