Side by side
MKII Fulcrum 39 DatevsSeiko Prospex Sea
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
11 of 29 specs differDiameter
Fulcrum 39 Date39.5mm
Prospex Sea41mm
Power Reserve
Fulcrum 39 Date—
Prospex Sea70h
Water Resistance
Fulcrum 39 Date200m
Prospex Sea200m
MSRP
Fulcrum 39 Date—
Prospex Sea$900
Full specifications
Case
4 specsCategory
—
Diver
Diameter
39.5mm
41mm
Thickness
14.1mm
12.3mm
Lug-to-Lug
47mm
46.9mm
Crystal & Dial
3 specsCrystal Shape
Flat
Curved
AR Coating
Inner
Anti-reflective coating on inner surface
Lume
BGW9
LumiBrite on hands, index(es) and bezel
Movement
3 specsCaliber
Miyota 9015
6R35
Power Reserve
—
70h
Jewels
25
24
Pricing
1 specsMSRP
—
$900
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 MKII Fulcrum 39 Date 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.












