Side by side
Noctua Watch Corp. SentinelvsSeiko Prospex Sea Save the Ocean Special Edition
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
12 of 29 specs differDiameter
Sentinel42mm
Prospex Sea Save the Ocean Special Edition43.8mm
Power Reserve
Sentinel—
Prospex Sea Save the Ocean Special Edition41h
Water Resistance
Sentinel300m
Prospex Sea Save the Ocean Special Edition200m
MSRP
Sentinel$429
Prospex Sea Save the Ocean Special Edition$650
Full specifications
Case
5 specsCategory
—
Diver
Diameter
42mm
43.8mm
Thickness
15mm
12.8mm
Lug-to-Lug
46mm
48.7mm
Water Resistance
300m
200m
Crystal & Dial
3 specsAR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
—
Black
Lume
None
LumiBrite on hands, index(es) and bezel
Movement
3 specsCaliber
Seiko NH35A
4R35
Power Reserve
—
41h
Jewels
25
23
Pricing
1 specsMSRP
—
$650
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