Which is cheaper, the Helgray Bomber Quartz - Brigadier Gray (Prototype) or the Seiko Prospex SPEEDTIMER Mechanical?

At MSRP the Helgray Bomber Quartz - Brigadier Gray (Prototype) is the cheaper of the two at $249, against $995 for the Seiko Prospex SPEEDTIMER Mechanical — a $746 gap before any retailer discounting.

Which is bigger, the Helgray Bomber Quartz - Brigadier Gray (Prototype) or the Seiko Prospex SPEEDTIMER Mechanical?

The Helgray Bomber Quartz - Brigadier Gray (Prototype) wears larger at 40mm versus 39.5mm for the Seiko Prospex SPEEDTIMER Mechanical — a 0.5mm difference across the dial.

Which has better water resistance, the Helgray Bomber Quartz - Brigadier Gray (Prototype) or the Seiko Prospex SPEEDTIMER Mechanical?

The Helgray Bomber Quartz - Brigadier Gray (Prototype) is rated to 100m versus 20m for the Seiko Prospex SPEEDTIMER Mechanical.

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

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

Side by side

Helgray Bomber Quartz - Brigadier Gray (Prototype)vsSeiko Prospex SPEEDTIMER Mechanical

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

Seiko Prospex SPEEDTIMER Mechanical

spb513j1

MSRP $995

At a glance

11 of 29 specs differ

Diameter

Bomber Quartz - Brigadier Gray (Prototype)40mm

Prospex SPEEDTIMER Mechanical39.5mm

Power Reserve

Bomber Quartz - Brigadier Gray (Prototype)40h

Prospex SPEEDTIMER Mechanical72h

Water Resistance

Bomber Quartz - Brigadier Gray (Prototype)100m

Prospex SPEEDTIMER Mechanical200m

MSRP

Bomber Quartz - Brigadier Gray (Prototype)$249

Prospex SPEEDTIMER Mechanical$995

Full specifications

Case

4 specs

Crystal & Dial

3 specs

Crystal Shape

Flat

Curved

AR Coating

Inner

Anti-reflective coating on inner surface

Lume

None

LumiBrite on hands and index(es)

Movement

3 specs

Caliber

—

6R55

Power Reserve

40h

72h

Jewels

Pricing

1 specs

MSRP

$249

$995

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