Side by side

Orient Star Mechanical Moon PhasevsSeiko 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

15 of 29 specs differ
Diameter
Mechanical Moon Phase41mm
Prospex Sea Save the Ocean Special Edition42.4mm
Power Reserve
Mechanical Moon Phase50h
Prospex Sea Save the Ocean Special Edition41h
Water Resistance
Mechanical Moon Phase100m
Prospex Sea Save the Ocean Special Edition200m
MSRP
Mechanical Moon Phase$1,590
Prospex Sea Save the Ocean Special Edition$550

Full specifications

Case

7 specs
Category
Mechanical
Diver
Diameter
41mm
42.4mm
Thickness
13.1mm
13.4mm
Lug-to-Lug
48.5mm
49.4mm
Lug Width
21mm
20mm
Finish
Water Resistance
100m
200m

Crystal & Dial

4 specs
Crystal
Sapphire
Hardlex
AR Coating
Yes
Dial Color
Black
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
F7M63
Seiko 4R36
Power Reserve
50h
41h
Jewels
22
24

Pricing

1 specs
MSRP
$1,590
$550
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