Which is cheaper, the Helgray Bomber Quartz - Brigadier Gray (Prototype) or the Grand Seiko SBGE307?

At MSRP the Helgray Bomber Quartz - Brigadier Gray (Prototype) is the cheaper of the two at $249, against $11,500 for the Grand Seiko SBGE307 — a $11,251 gap before any retailer discounting.

Which is bigger, the Helgray Bomber Quartz - Brigadier Gray (Prototype) or the Grand Seiko SBGE307?

The Grand Seiko SBGE307 wears larger at 44.5mm versus 40mm for the Helgray Bomber Quartz - Brigadier Gray (Prototype) — a 4.5mm difference across the dial.

Which has better water resistance, the Helgray Bomber Quartz - Brigadier Gray (Prototype) or the Grand Seiko SBGE307?

The Grand Seiko SBGE307 is rated to 200m versus 100m for the Helgray Bomber Quartz - Brigadier Gray (Prototype).

Which has a longer power reserve, the Helgray Bomber Quartz - Brigadier Gray (Prototype) or the Grand Seiko SBGE307?

The Grand Seiko SBGE307 carries a 72-hour power reserve against 40 hours on the Helgray Bomber Quartz - Brigadier Gray (Prototype).

What movement does the Helgray Bomber Quartz - Brigadier Gray (Prototype) run compared to the Grand Seiko SBGE307?

The Helgray Bomber Quartz - Brigadier Gray (Prototype) runs a automatic caliber, while the Grand Seiko SBGE307 runs a spring drive (9R66).

Side by side

Helgray Bomber Quartz - Brigadier Gray (Prototype)vsGrand Seiko SBGE307

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

Helgray Bomber Quartz - Brigadier Gray (Prototype)

bomber-quartz-brigadier-gray

MSRP $249

Grand Seiko SBGE307

sbge307g

MSRP $11,500

At a glance

12 of 29 specs differ

Diameter

Bomber Quartz - Brigadier Gray (Prototype)40mm

SBGE30744.5mm

Power Reserve

Bomber Quartz - Brigadier Gray (Prototype)40h

SBGE30772h

Water Resistance

Bomber Quartz - Brigadier Gray (Prototype)100m

SBGE307200m

MSRP

Bomber Quartz - Brigadier Gray (Prototype)$249

SBGE307$11,500

Full specifications

Case

7 specs

Crystal & Dial

1 specs

AR Coating

Inner

Yes

Movement

3 specs

Caliber

—

9R66

Type

Automatic

Spring Drive

Power Reserve

40h

72h

Pricing

1 specs

MSRP

$249

$11,500

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