Which has a longer power reserve, the Sugess Ocean Star S421 or the Seiko Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition?

The Seiko Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition carries a 72-hour power reserve against 40 hours on the Sugess Ocean Star S421.

What movement does the Sugess Ocean Star S421 run compared to the Seiko Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition?

Both watches run automatic movements — the Sugess Ocean Star S421 uses the Seagull ST2130/Seiko NH35 and the Seiko Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition uses the 6R55.

Side by side

Sugess Ocean Star S421vsSeiko Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition

Q: Which is cheaper, the Sugess Ocean Star S421 or the Seiko Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition?

At MSRP the Sugess Ocean Star S421 is the cheaper of the two at $449, against $1,400 for the Seiko Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition — a $951 gap before any retailer discounting.

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

Sugess Ocean Star S421

S421

MSRP $449

Seiko Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition

spb545j1

MSRP $1,400

At a glance

12 of 29 specs differ

Diameter

Ocean Star S42140mm

Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition40mm

Power Reserve

Ocean Star S42140h

Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition72h

Water Resistance

Ocean Star S421300m

Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition300m

MSRP

Ocean Star S421$449

Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition$1,400

Full specifications

Case

2 specs

Thickness

12.7mm

13mm

Lug-to-Lug

46mm

46.4mm

Crystal & Dial

4 specs

Crystal Shape

Flat

Curved

AR Coating

Inner

Anti-reflective coating on inner surface

Dial Color

SU116610LB Black

Black

Lume

None

LumiBrite on hands, index(es) and bezel

Movement

5 specs

Caliber

Seagull ST2130/Seiko NH35

6R55

Beat Rate

4 vph

28,800 vph

Power Reserve

40h

72h

Jewels

Complications

GMT, Chronograph, Moonphase, Date

None

Pricing

1 specs

MSRP

$449

$1,400

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