Which is cheaper, the Lum-Tec Combat B72 or the Seiko Prospex Sea?

At MSRP the Lum-Tec Combat B72 is the cheaper of the two at $595, against $1,500 for the Seiko Prospex Sea — a $905 gap before any retailer discounting.

Which is bigger, the Lum-Tec Combat B72 or the Seiko Prospex Sea?

The Seiko Prospex Sea wears larger at 43.5mm versus 43mm for the Lum-Tec Combat B72 — a 0.5mm difference across the dial.

Which has a longer power reserve, the Lum-Tec Combat B72 or the Seiko Prospex Sea?

The Seiko Prospex Sea carries a 70-hour power reserve against 40 hours on the Lum-Tec Combat B72.

What movement does the Lum-Tec Combat B72 run compared to the Seiko Prospex Sea?

Both watches run automatic movements — the Lum-Tec Combat B72 uses the Ronda 515 and the Seiko Prospex Sea uses the 6R35.

Side by side

Lum-Tec Combat B72vsSeiko Prospex Sea

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

Add a watch

Lum-Tec Combat B72

combat-b72

MSRP $595

See the full Combat B72

Seiko Prospex Sea

spb349j1

MSRP $1,500

See the full Prospex Sea

At a glance

12 of 29 specs differ

Diameter

Combat B7243mm

Prospex Sea43.5mm

Power Reserve

Combat B7240h

Prospex Sea70h

Water Resistance

Combat B72200m

Prospex Sea200m

MSRP

Combat B72$595

Prospex Sea$1,500

Full specifications

Case

5 specs

Crystal & Dial

3 specs

AR Coating

Inner

Anti-reflective coating on inner surface

Dial Color

—

Black

Lume

None

LumiBrite on hands and index(es)

Movement

3 specs

Caliber

Ronda 515

6R35

Power Reserve

40h

70h

Jewels

Pricing

1 specs

MSRP

$595

$1,500

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Lum-Tec Combat B72vsSeiko Prospex Sea

At a glance

Full specifications

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