Side by side

Sangin Instruments Hydra IIvsSeiko Prospex Sea

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

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Hydra II
Sangin InstrumentsHydra II
MSRP $1,795
See the full Hydra II
Prospex Sea
SeikoProspex Sea
MSRP $625
See the full Prospex Sea
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At a glance

15 of 29 specs differ
Diameter
Hydra II43mm
Prospex Sea43.8mm
Power Reserve
Hydra II—
Prospex Sea41h
Water Resistance
Hydra II300m
Prospex Sea200m
MSRP
Hydra II$1,795
Prospex Sea$625

Full specifications

Case

7 specs
Category
—
Diver
Diameter
43mm
43.8mm
Thickness
0mm
12.8mm
Lug-to-Lug
0mm
48.7mm
Lug Width
0mm
22mm
Material
—
Stainless Steel
Water Resistance
300m
200m

Crystal & Dial

4 specs
Crystal
—
Sapphire
AR Coating
—
Anti-reflective coating on inner surface
Dial Color
Polar White
—
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Automatic (La Joux-Perret G100)
4R35
Power Reserve
0h
41h
Jewels
0
23

Pricing

1 specs
MSRP
$1,795
$625
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