Which is cheaper, the Lum-Tec B64 Chronograph or the Grand Seiko SLGB006?

At MSRP the Lum-Tec B64 Chronograph is the cheaper of the two at $545, against $43,600 for the Grand Seiko SLGB006 — a $43,055 gap before any retailer discounting.

Which is bigger, the Lum-Tec B64 Chronograph or the Grand Seiko SLGB006?

The Lum-Tec B64 Chronograph wears larger at 44mm versus 37mm for the Grand Seiko SLGB006 — a 7mm difference across the dial.

Which has a longer power reserve, the Lum-Tec B64 Chronograph or the Grand Seiko SLGB006?

The Grand Seiko SLGB006 carries a 72-hour power reserve against 40 hours on the Lum-Tec B64 Chronograph.

What movement does the Lum-Tec B64 Chronograph run compared to the Grand Seiko SLGB006?

The Lum-Tec B64 Chronograph runs a automatic caliber, while the Grand Seiko SLGB006 runs a spring drive (9RB2).

Side by side

Lum-Tec B64 ChronographvsGrand Seiko SLGB006

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

Lum-Tec B64 Chronograph

b64-chronograph

MSRP $545

Grand Seiko SLGB006

slgb006g

MSRP $43,600

At a glance

13 of 29 specs differ

Diameter

B64 Chronograph44mm

SLGB00637mm

Power Reserve

B64 Chronograph40h

SLGB00672h

Water Resistance

B64 Chronograph100m

SLGB006100m

MSRP

B64 Chronograph$545

SLGB006$43,600

Full specifications

Case

6 specs

Crystal & Dial

3 specs

Crystal

Domed Sapphire

Sapphire

AR Coating

Inner

Yes

Dial Color

Standard

Black

Movement

3 specs

Caliber

—

9RB2

Type

Automatic

Spring Drive

Power Reserve

40h

72h

Pricing

1 specs

MSRP

$545

$43,600

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Lum-Tec B64 ChronographvsGrand Seiko SLGB006

At a glance

Full specifications

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