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Ergon Watches MaelstromvsSeiko Prospex Sea

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

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Maelstrom
Ergon WatchesMaelstrom
Prospex Sea
SeikoProspex Sea
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At a glance

11 of 29 specs differ
Diameter
Maelstrom40mm
Prospex Sea42mm
Power Reserve
Maelstrom—
Prospex Sea72h
Water Resistance
Maelstrom300m
Prospex Sea300m
MSRP
Maelstrom—
Prospex Sea—

Full specifications

Case

5 specs
Category
—
Diver
Diameter
40mm
42mm
Thickness
13mm
13.3mm
Lug-to-Lug
—
48.6mm
Material
Bronze
Stainless Steel

Crystal & Dial

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

Movement

3 specs
Caliber
Sellita SW-200
6R54
Power Reserve
—
72h
Jewels
25
24
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