Side by side
Oblvlo FM SL Day-Date SquarevsSeiko Prospex Sea 1968 Heritage Diver's GMT
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
12 of 29 specs differDiameter
FM SL Day-Date Square39mm
Prospex Sea 1968 Heritage Diver's GMT42mm
Power Reserve
FM SL Day-Date Square42h
Prospex Sea 1968 Heritage Diver's GMT72h
Water Resistance
FM SL Day-Date Square50m
Prospex Sea 1968 Heritage Diver's GMT200m
MSRP
FM SL Day-Date Square$158
Prospex Sea 1968 Heritage Diver's GMT$1,500
Full specifications
Case
6 specsCategory
Dress
Diver
Diameter
39mm
42mm
Thickness
11mm
12.9mm
Lug-to-Lug
46mm
48.6mm
Lug Width
21mm
20mm
Water Resistance
50m
200m
Crystal & Dial
2 specsAR Coating
Inner
Anti-reflective coating on inner surface
Lume
None
LumiBrite on hands, index(es) and bezel
Movement
3 specsCaliber
Miyota 8215
6R54
Power Reserve
42h
72h
Jewels
21
24
Pricing
1 specsMSRP
$158
$1,500
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