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Duckworth Prestex Belmont 300 AutomaticvsSeiko Prospex Sea

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

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Belmont 300 Automatic
Duckworth PrestexBelmont 300 Automatic
MSRP $750
Prospex Sea
SeikoProspex Sea
Buy from Duckworth Prestex ↗
Buy used on eBay ↗
Buy from Seiko ↗
Buy used on eBay ↗

At a glance

10 of 29 specs differ
Diameter
Belmont 300 Automatic42mm
Prospex Sea42mm
Power Reserve
Belmont 300 Automatic38h
Prospex Sea72h
Water Resistance
Belmont 300 Automatic300m
Prospex Sea300m
MSRP
Belmont 300 Automatic$750
Prospex Sea—

Full specifications

Case

3 specs
Category
—
Diver
Thickness
13mm
13.3mm
Lug-to-Lug
50mm
48.6mm

Crystal & Dial

3 specs
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
—
Black
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Miyota 9039
6R54
Power Reserve
38h
72h
Jewels
25
24

Pricing

1 specs
MSRP
$750
—
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