Which is cheaper, the Grand Seiko SBGE307 or the Helgray Speedster (Racing Light Blue)?

At MSRP the Helgray Speedster (Racing Light Blue) is the cheaper of the two at $299, against $11,500 for the Grand Seiko SBGE307 — a $11,201 gap before any retailer discounting.

Which is bigger, the Grand Seiko SBGE307 or the Helgray Speedster (Racing Light Blue)?

The Grand Seiko SBGE307 wears larger at 44.5mm versus 39mm for the Helgray Speedster (Racing Light Blue) — a 5.5mm difference across the dial.

Which has better water resistance, the Grand Seiko SBGE307 or the Helgray Speedster (Racing Light Blue)?

The Grand Seiko SBGE307 is rated to 200m versus 30m for the Helgray Speedster (Racing Light Blue).

Which has a longer power reserve, the Grand Seiko SBGE307 or the Helgray Speedster (Racing Light Blue)?

The Grand Seiko SBGE307 carries a 72-hour power reserve against 40 hours on the Helgray Speedster (Racing Light Blue).

What movement does the Grand Seiko SBGE307 run compared to the Helgray Speedster (Racing Light Blue)?

The Grand Seiko SBGE307 runs a spring drive caliber (9R66), while the Helgray Speedster (Racing Light Blue) runs a automatic (Miyota 6S21).

Side by side

Grand Seiko SBGE307vsHelgray Speedster (Racing Light Blue)

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

Grand Seiko SBGE307

sbge307g

MSRP $11,500

Helgray Speedster (Racing Light Blue)

speedster-racing-light-blue

MSRP $299

At a glance

12 of 29 specs differ

Diameter

SBGE30744.5mm

Speedster (Racing Light Blue)39mm

Power Reserve

SBGE30772h

Speedster (Racing Light Blue)40h

Water Resistance

SBGE307200m

Speedster (Racing Light Blue)30m

MSRP

SBGE307$11,500

Speedster (Racing Light Blue)$299

Full specifications

Case

7 specs

Crystal & Dial

1 specs

AR Coating

Yes

Inner

Movement

3 specs

Caliber

9R66

Miyota 6S21

Type

Spring Drive

Automatic

Power Reserve

72h

40h

Pricing

1 specs

MSRP

$11,500

$299

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