Side by side
Lum-Tec B64 ChronographvsGrand Seiko SBGW306
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
SBGW30636.5mm
Power Reserve
B64 Chronograph40h
SBGW30672h
Water Resistance
B64 Chronograph100m
SBGW306100m
MSRP
B64 Chronograph$545
SBGW306$17,900
Full specifications
Case
6 specsCategory
Chronograph
Dress
Diameter
44mm
36.5mm
Thickness
—
11.7mm
Lug-to-Lug
51.5mm
42.7mm
Lug Width
22mm
18mm
Material
Titanium (DLC coated)
Gold
Crystal & Dial
3 specsCrystal
Domed Sapphire
Sapphire
AR Coating
Inner
Yes
Dial Color
Standard
Black
Movement
3 specsCaliber
—
9S64
Type
Automatic
Manual
Power Reserve
40h
72h
Pricing
1 specsMSRP
$545
$17,900
Follow this matchup
Get a note when Lum-Tec B64 Chronograph vs Grand Seiko SBGW306 gets more votes, a community discussion, or a price drop. No account needed.
More watches worth a look
Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.
People also compared
Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.