Which is cheaper, the Sugess Ocean Star S450 YM or the Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition?

At MSRP the Sugess Ocean Star S450 YM is the cheaper of the two at $449, against $3,300 for the Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition — a $2,851 gap before any retailer discounting.

Which is bigger, the Sugess Ocean Star S450 YM or the Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition?

The Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition wears larger at 44mm versus 40mm for the Sugess Ocean Star S450 YM — a 4mm difference across the dial.

Which has better water resistance, the Sugess Ocean Star S450 YM or the Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition?

The Sugess Ocean Star S450 YM is rated to 300m versus 200m for the Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition.

Which has a longer power reserve, the Sugess Ocean Star S450 YM or the Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition?

The Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition carries a 50-hour power reserve against 40 hours on the Sugess Ocean Star S450 YM.

What movement does the Sugess Ocean Star S450 YM run compared to the Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition?

Both watches run automatic movements — the Sugess Ocean Star S450 YM uses the Seiko NH35 and the Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition uses the 8L35.

Side by side

Sugess Ocean Star S450 YMvsSeiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition

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

Sugess Ocean Star S450 YM

S450

MSRP $449

Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition

sla061j1

MSRP $3,300

At a glance

13 of 29 specs differ

Diameter

Ocean Star S450 YM40mm

Prospex Sea 1970 Heritage Diver's Black Series Limited Edition44mm

Power Reserve

Ocean Star S450 YM40h

Prospex Sea 1970 Heritage Diver's Black Series Limited Edition50h

Water Resistance

Ocean Star S450 YM300m

Prospex Sea 1970 Heritage Diver's Black Series Limited Edition200m

MSRP

Ocean Star S450 YM$449

Prospex Sea 1970 Heritage Diver's Black Series Limited Edition$3,300

Full specifications

Case

4 specs

Diameter

40mm

44mm

Thickness

12mm

13mm

Lug-to-Lug

46mm

49.3mm

Water Resistance

300m

200m

Crystal & Dial

3 specs

Crystal Shape

Flat

Curved

AR Coating

Inner

Anti-reflective coating on inner surface

Lume

Tritium

LumiBrite on hands, index(es) and bezel

Movement

5 specs

Caliber

Seiko NH35

8L35

Beat Rate

3 vph

28,800 vph

Power Reserve

40h

50h

Jewels

Complications

GMT, Moonphase, Date

None

Pricing

1 specs

MSRP

$449

$3,300

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