Side by side
Duckworth Prestex Belmont 300 AutomaticvsSeiko Prospex Sea 1965 Heritage Diver's Watch
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
11 of 29 specs differDiameter
Belmont 300 Automatic42mm
Prospex Sea 1965 Heritage Diver's Watch40mm
Power Reserve
Belmont 300 Automatic38h
Prospex Sea 1965 Heritage Diver's Watch72h
Water Resistance
Belmont 300 Automatic300m
Prospex Sea 1965 Heritage Diver's Watch300m
MSRP
Belmont 300 Automatic$750
Prospex Sea 1965 Heritage Diver's Watch$1,300
Full specifications
Case
3 specsCategory
—
Diver
Diameter
42mm
40mm
Lug-to-Lug
50mm
46.4mm
Crystal & Dial
4 specsCrystal Shape
Flat
Curved
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
—
Black
Lume
None
LumiBrite on hands, index(es) and bezel
Movement
3 specsCaliber
Miyota 9039
6R55
Power Reserve
38h
72h
Jewels
25
24
Pricing
1 specsMSRP
$750
$1,300
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