Which is cheaper, the Lorier Hyperion SII or the Seiko Prospex Sea?

At MSRP the Lorier Hyperion SII is the cheaper of the two at $699, against $1,500 for the Seiko Prospex Sea — a $801 gap before any retailer discounting.

Which is bigger, the Lorier Hyperion SII or the Seiko Prospex Sea?

The Seiko Prospex Sea wears larger at 43.5mm versus 39mm for the Lorier Hyperion SII — a 4.5mm difference across the dial.

Which has a longer power reserve, the Lorier Hyperion SII or the Seiko Prospex Sea?

The Seiko Prospex Sea carries a 70-hour power reserve against 40 hours on the Lorier Hyperion SII.

Side by side

Lorier Hyperion SIIvsSeiko Prospex Sea

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

Lorier Hyperion SII

hyperion-sii

MSRP $699

Seiko Prospex Sea

spb349j1

MSRP $1,500

At a glance

13 of 29 specs differ

Diameter

Hyperion SII39mm

Prospex Sea43.5mm

Power Reserve

Hyperion SII40h

Prospex Sea70h

Water Resistance

Hyperion SII200m

Prospex Sea200m

MSRP

Hyperion SII$699

Prospex Sea$1,500

Full specifications

Case

6 specs

Crystal & Dial

3 specs

AR Coating

Inner

Anti-reflective coating on inner surface

Dial Color

Blue

Black

Lume

None

LumiBrite on hands and index(es)

Movement

3 specs

Caliber

—

6R35

Power Reserve

40h

70h

Jewels

Pricing

1 specs

MSRP

$699

$1,500

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What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Lorier Hyperion SII

Owners widely praise the Lorier Hyperion SII for its vintage aesthetic, glossy black dial, and tasteful text. One owner notes the Miyota 9075 movement and calls it the best GMT under $800. Criticisms include a small GMT hand that is difficult to spot, and one user found the winding action not smooth with significant crown resistance. Overall, owners rate the Lorier Hyperion SII highly for its vintage aesthetic and value.

From video reviewers

The GMT functionality is a key strength. The Miyota 9075 movement's 42-hour power reserve is a drawback. Reviewers disagreed on the value proposition at the price point.

Fratello

WatchUSeek

Seiko Prospex Sea

Seiko Prospex Sea owners and reviewers praise its Marinemaster-style aesthetic, excellent case finishing, and impressive LumiBrite lume. The watch is powered by the 6R15 movement with a 50-hour power reserve and comes with both a steel bracelet and a silicone strap. Some owners find the Seiko Prospex Sea to be a great value and a suitable first "proper" watch, while others report it is uncomfortably big, thick, and heavy on smaller wrists. Reviewers note the GMT function is secondary with a less prominent scale, and the bezel's quieter clicks may not appeal to all. On balance, owners and reviewers rate the Seiko Prospex Sea highly for its classic design and finishing at its price point.

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