Which is cheaper, the Hemel HD24 Automatic or the Seiko Prospex Sea 1965 Heritage Diver's Watch?

At MSRP the Hemel HD24 Automatic is the cheaper of the two at $300, against $1,300 for the Seiko Prospex Sea 1965 Heritage Diver's Watch — a $1,000 gap before any retailer discounting.

Which has better water resistance, the Hemel HD24 Automatic or the Seiko Prospex Sea 1965 Heritage Diver's Watch?

The Seiko Prospex Sea 1965 Heritage Diver's Watch is rated to 300m versus 200m for the Hemel HD24 Automatic.

Which has a longer power reserve, the Hemel HD24 Automatic or the Seiko Prospex Sea 1965 Heritage Diver's Watch?

The Seiko Prospex Sea 1965 Heritage Diver's Watch carries a 72-hour power reserve against 40 hours on the Hemel HD24 Automatic.

What movement does the Hemel HD24 Automatic run compared to the Seiko Prospex Sea 1965 Heritage Diver's Watch?

Both watches run automatic movements — the Hemel HD24 Automatic uses the Seiko NH38A and the Seiko Prospex Sea 1965 Heritage Diver's Watch uses the 6R55.

Side by side

Hemel HD24 AutomaticvsSeiko Prospex Sea 1965 Heritage Diver's Watch

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

Hemel HD24 Automatic

the-gallant

MSRP $300

Seiko Prospex Sea 1965 Heritage Diver's Watch

spb451j1

MSRP $1,300

At a glance

12 of 29 specs differ

Diameter

HD24 Automatic40mm

Prospex Sea 1965 Heritage Diver's Watch40mm

Power Reserve

HD24 Automatic40h

Prospex Sea 1965 Heritage Diver's Watch72h

Water Resistance

HD24 Automatic200m

Prospex Sea 1965 Heritage Diver's Watch300m

MSRP

HD24 Automatic$300

Prospex Sea 1965 Heritage Diver's Watch$1,300

Full specifications

Case

3 specs

Lug-to-Lug

48mm

46.4mm

Material

316L Stainless Steel

Stainless Steel

Water Resistance

200m

300m

Crystal & Dial

5 specs

Crystal

Domed Sapphire

Sapphire

Crystal Shape

Flat

Curved

AR Coating

Inner

Anti-reflective coating on inner surface

Dial Color

Gallant USAF Edition

Black

Lume

None

LumiBrite on hands, index(es) and bezel

Movement

3 specs

Caliber

Seiko NH38A

6R55

Power Reserve

40h

72h

Jewels

Pricing

1 specs

MSRP

$300

$1,300

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