Side by side

Lum-Tec B64 ChronographvsGrand Seiko SBGE307

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

B64 Chronograph
Lum-TecB64 Chronograph
MSRP $545
SBGE307
Grand SeikoSBGE307
MSRP $11,500

At a glance

14 of 29 specs differ
Diameter
B64 Chronograph44mm
SBGE30744.5mm
Power Reserve
B64 Chronograph40h
SBGE30772h
Water Resistance
B64 Chronograph100m
SBGE307200m
MSRP
B64 Chronograph$545
SBGE307$11,500

Full specifications

Case

7 specs
Category
Chronograph
GMT
Diameter
44mm
44.5mm
Thickness
—
14.9mm
Lug-to-Lug
51.5mm
50mm
Lug Width
22mm
23mm
Material
Titanium (DLC coated)
Titanium
Water Resistance
100m
200m

Crystal & Dial

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

Movement

3 specs
Caliber
—
9R66
Type
Automatic
Spring Drive
Power Reserve
40h
72h

Pricing

1 specs
MSRP
$545
$11,500

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