Side by side

Lum-Tec B64 ChronographvsGrand Seiko SBGR321

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

B64 Chronograph
Lum-TecB64 Chronograph
MSRP $545
SBGR321
Grand SeikoSBGR321
MSRP $5,200

At a glance

12 of 29 specs differ
Diameter
B64 Chronograph44mm
SBGR32140mm
Power Reserve
B64 Chronograph40h
SBGR32172h
Water Resistance
B64 Chronograph100m
SBGR321100m
MSRP
B64 Chronograph$545
SBGR321$5,200

Full specifications

Case

6 specs
Category
Chronograph
Dress
Diameter
44mm
40mm
Thickness
—
13mm
Lug-to-Lug
51.5mm
46.6mm
Lug Width
22mm
20mm
Material
Titanium (DLC coated)
Stainless Steel

Crystal & Dial

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

Movement

2 specs
Caliber
—
9S65
Power Reserve
40h
72h

Pricing

1 specs
MSRP
$545
$5,200

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