Side by side
Lum-Tec B64 ChronographvsGrand Seiko STGK003
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
12 of 29 specs differDiameter
B64 Chronograph44mm
STGK00328.7mm
Power Reserve
B64 Chronograph40h
STGK00350h
Water Resistance
B64 Chronograph100m
STGK003100m
MSRP
B64 Chronograph$545
STGK003$31,200
Full specifications
Case
6 specsCategory
Chronograph
Dress
Diameter
44mm
28.7mm
Thickness
—
10.9mm
Lug-to-Lug
51.5mm
35.1mm
Lug Width
22mm
14mm
Material
Titanium (DLC coated)
Gold
Crystal & Dial
3 specsCrystal
Domed Sapphire
Sapphire
AR Coating
Inner
Yes
Dial Color
Standard
Black
Movement
2 specsCaliber
—
9S27
Power Reserve
40h
50h
Pricing
1 specsMSRP
$545
$31,200
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