Side by side
Spinnaker Dark CeruleanvsSeiko Prospex Sea
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
12 of 29 specs differDiameter
Dark Cerulean45mm
Prospex Sea43.8mm
Power Reserve
Dark Cerulean40h
Prospex Sea41h
Water Resistance
Dark Cerulean550m
Prospex Sea200m
MSRP
Dark Cerulean$289
Prospex Sea$625
Full specifications
Case
5 specsDiameter
45mm
43.8mm
Thickness
21mm
12.8mm
Lug-to-Lug
52mm
48.7mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
550m
200m
Crystal & Dial
3 specsAR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Dark Cerulean
Black
Lume
None
LumiBrite on hands, index(es) and bezel
Movement
3 specsCaliber
NH35
4R35
Power Reserve
40h
41h
Jewels
25
23
Pricing
1 specsMSRP
$289
$625
More watches worth a look
Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.
Follow this matchup
Get a note when Spinnaker Dark Cerulean vs Seiko Prospex Sea gets more votes, a community discussion, or a price drop. No account needed.
People also compared
Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.










