Side by side
Lum-Tec B64 ChronographvsGrand Seiko SBGA385
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
13 of 29 specs differDiameter
B64 Chronograph44mm
SBGA38540mm
Power Reserve
B64 Chronograph40h
SBGA38572h
Water Resistance
B64 Chronograph100m
SBGA385100m
MSRP
B64 Chronograph$545
SBGA385$53,000
Full specifications
Case
6 specsCategory
Chronograph
Dress
Diameter
44mm
40mm
Thickness
—
12.5mm
Lug-to-Lug
51.5mm
46.2mm
Lug Width
22mm
19mm
Material
Titanium (DLC coated)
Platinum
Crystal & Dial
3 specsCrystal
Domed Sapphire
Sapphire
AR Coating
Inner
Yes
Dial Color
Standard
Black
Movement
3 specsCaliber
—
9R15
Type
Automatic
Spring Drive
Power Reserve
40h
72h
Pricing
1 specsMSRP
$545
$53,000
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