Side by side

Seiko 5KXvsUndone BRUTUS MONO Automatic

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

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5KX
Seiko5KX
MSRP $350
See the full 5KX
BRUTUS MONO Automatic
UndoneBRUTUS MONO Automatic
MSRP $699
See the full BRUTUS MONO Automatic
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At a glance

13 of 29 specs differ
Diameter
5KX42.5mm
BRUTUS MONO Automatic43mm
Power Reserve
5KX41h
BRUTUS MONO Automatic—
Water Resistance
5KX100m
BRUTUS MONO Automatic300m
MSRP
5KX$350
BRUTUS MONO Automatic$699

Full specifications

Case

6 specs
Category
Diver
—
Diameter
42.5mm
43mm
Thickness
13.4mm
0mm
Lug-to-Lug
46mm
0mm
Lug Width
22mm
0mm
Water Resistance
100m
300m

Crystal & Dial

3 specs
Crystal
Hardlex
—
Dial Color
—
—
Lume
LumiBrite on hands and index(es)
None

Movement

3 specs
Caliber
Seiko 4R36
Seiko NH35
Power Reserve
41h
—
Jewels
24
0

Pricing

1 specs
MSRP
$350
$699
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