Side by side
Oblvlo FM SL Day-Date SquarevsSeiko Prospex SPEEDTIMER
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
13 of 29 specs differDiameter
FM SL Day-Date Square39mm
Prospex SPEEDTIMER42.5mm
Power Reserve
FM SL Day-Date Square42h
Prospex SPEEDTIMER45h
Water Resistance
FM SL Day-Date Square50m
Prospex SPEEDTIMER100m
MSRP
FM SL Day-Date Square$158
Prospex SPEEDTIMER$3,000
Full specifications
Case
6 specsCategory
Dress
Chronograph
Diameter
39mm
42.5mm
Thickness
11mm
15.1mm
Lug-to-Lug
46mm
50mm
Lug Width
21mm
20mm
Water Resistance
50m
100m
Crystal & Dial
3 specsCrystal Shape
Flat
Curved
AR Coating
Inner
Anti-reflective coating on inner surface
Lume
None
LumiBrite on hands and index(es)
Movement
3 specsCaliber
Miyota 8215
8R46
Power Reserve
42h
45h
Jewels
21
34
Pricing
1 specsMSRP
$158
$3,000
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