Side by side

Lum-Tec RPMvsGrand Seiko SBGM221

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

RPM
Lum-TecRPM
MSRP $495
SBGM221
Grand SeikoSBGM221
MSRP $5,400

At a glance

13 of 29 specs differ
Diameter
RPM43mm
SBGM22139.5mm
Power Reserve
RPM40h
SBGM22172h
Water Resistance
RPM50m
SBGM22130m
MSRP
RPM$495
SBGM221$5,400

Full specifications

Case

7 specs
Category
Chronograph
GMT
Diameter
43mm
39.5mm
Thickness
12.3mm
13.7mm
Lug-to-Lug
41mm
46.9mm
Lug Width
20mm
19mm
Material
Titanium
Stainless Steel
Water Resistance
50m
30m

Crystal & Dial

2 specs
AR Coating
Inner
Yes
Dial Color
RPM 3
Black

Movement

3 specs
Caliber
—
9S66
Type
Quartz
Automatic
Power Reserve
40h
72h

Pricing

1 specs
MSRP
$495
$5,400

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