Side by side

Lum-Tec B64 ChronographvsGrand Seiko SBGD228

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

B64 Chronograph
Lum-TecB64 Chronograph
MSRP $545
SBGD228
Grand SeikoSBGD228
MSRP $273,000

At a glance

12 of 29 specs differ
Diameter
B64 Chronograph44mm
SBGD22844.5mm
Power Reserve
B64 Chronograph40h
SBGD228192h
Water Resistance
B64 Chronograph100m
SBGD228100m
MSRP
B64 Chronograph$545
SBGD228$273,000

Full specifications

Case

5 specs
Diameter
44mm
44.5mm
Thickness
14.4mm
Lug-to-Lug
51.5mm
52mm
Lug Width
22mm
23mm
Material
Titanium (DLC coated)
Gold

Crystal & Dial

3 specs
Crystal
Domed Sapphire
Sapphire
AR Coating
Inner
Yes
Dial Color
Standard
Black

Movement

3 specs
Caliber
9R01
Type
Automatic
Spring Drive
Power Reserve
40h
192h

Pricing

1 specs
MSRP
$545
$273,000

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