Ferro & Company RACE Master Chronograph SilvervsSeiko Prospex Speedtimer
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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.

RACE Master Chronograph Silver

Prospex Speedtimer
Diameter
39mm
42mm
Lug-to-Lug
45.2mm
lowest
49.6mm
Thickness
13.2mm
12.9mm
lowest
Water Resistance
50m
100m
highest
MSRP
$485
lowest
$2,200
Movement
Miyota OS21
Seiko 5X83
Case
5 specsDiameter
39mm
42mm
Thickness
13.15mm
12.9mm
Lug-to-Lug
45.2mm
49.6mm
Lug Width
22mm
20mm
Water Resistance
50m
100m
Crystal & Dial
5 specsCrystal
Hesalite
Sapphire
Crystal Shape
n/a
Curved
AR Coating
n/a
Super-clear coating
Dial Color
n/a
n/a
Lume
None
LumiBrite on hands and index(es)
Movement
2 specsCaliber
Miyota OS21
Seiko 5X83
Jewels
0
14
Pricing
1 specsMSRP
$485
$2,200
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