Side by side

Oblvlo NM AutomaticvsTimefactors Speedbird PRS-51

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

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NM Automatic
OblvloNM Automatic
MSRP $210
See the full NM Automatic
Speedbird PRS-51
TimefactorsSpeedbird PRS-51
MSRP $436
See the full Speedbird PRS-51
Buy from Oblvlo ↗
Buy used on eBay ↗
Buy from Timefactors ↗
Buy used on eBay ↗

At a glance

11 of 29 specs differ
Diameter
NM Automatic40mm
Speedbird PRS-5136mm
Power Reserve
NM Automatic50h
Speedbird PRS-51—
Water Resistance
NM Automatic50m
Speedbird PRS-51100m
MSRP
NM Automatic$210
Speedbird PRS-51$436

Full specifications

Case

6 specs
Category
Skeleton
—
Diameter
40mm
36mm
Thickness
11mm
11.4mm
Lug-to-Lug
46mm
42mm
Lug Width
22mm
18mm
Water Resistance
50m
100m

Crystal & Dial

1 specs
Lume
Super-LumiNova
SuperLuminova X1-C3

Movement

3 specs
Caliber
Seiko NH39
Miyota 9015
Power Reserve
50h
—
Jewels
21
25

Pricing

1 specs
MSRP
$210
$436
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All alternatives to the NM Automatic →All alternatives to the Speedbird PRS-51 →
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