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

At MSRP the Helgray Bomber Quartz - Brigadier Gray (Prototype) is the cheaper of the two at $249, against $625 for the Seiko Prospex Sea — a $376 gap before any retailer discounting.

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

The Seiko Prospex Sea wears larger at 43.8mm versus 40mm for the Helgray Bomber Quartz - Brigadier Gray (Prototype) — a 3.8mm difference across the dial.

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

The Seiko Prospex Sea 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 Seiko Prospex Sea?

The Seiko Prospex Sea carries a 41-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 Sea

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 Sea

srpe37

MSRP $625

At a glance

12 of 29 specs differ

Diameter

Bomber Quartz - Brigadier Gray (Prototype)40mm

Prospex Sea43.8mm

Power Reserve

Bomber Quartz - Brigadier Gray (Prototype)40h

Prospex Sea41h

Water Resistance

Bomber Quartz - Brigadier Gray (Prototype)100m

Prospex Sea200m

MSRP

Bomber Quartz - Brigadier Gray (Prototype)$249

Prospex Sea$625

Full specifications

Case

6 specs

Crystal & Dial

2 specs

AR Coating

Inner

Anti-reflective coating on inner surface

Lume

None

LumiBrite on hands, index(es) and bezel

Movement

3 specs

Caliber

—

4R35

Power Reserve

40h

41h

Jewels

Pricing

1 specs

MSRP

$249

$625

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