What movement does the Seiko Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition run compared to the Helgray Speedster (Silver Panda)?

Both watches run automatic movements — the Seiko Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition uses the 6R54 and the Helgray Speedster (Silver Panda) uses the Miyota 6S21.

Side by side

Seiko Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited EditionvsHelgray Speedster (Silver Panda)

Q: Which is cheaper, the Seiko Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition or the Helgray Speedster (Silver Panda)?

At MSRP the Helgray Speedster (Silver Panda) is the cheaper of the two at $299, against $1,750 for the Seiko Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition — a $1,451 gap before any retailer discounting.

Q: Which is bigger, the Seiko Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition or the Helgray Speedster (Silver Panda)?

The Seiko Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition wears larger at 42mm versus 39mm for the Helgray Speedster (Silver Panda) — a 3mm difference across the dial.

Q: Which has better water resistance, the Seiko Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition or the Helgray Speedster (Silver Panda)?

The Seiko Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition is rated to 300m versus 30m for the Helgray Speedster (Silver Panda).

Q: Which has a longer power reserve, the Seiko Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition or the Helgray Speedster (Silver Panda)?

The Seiko Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition carries a 72-hour power reserve against 40 hours on the Helgray Speedster (Silver Panda).

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

Seiko Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition

spb509j1

MSRP $1,750

Helgray Speedster (Silver Panda)

speedster-silver-panda

MSRP $299

At a glance

11 of 29 specs differ

Diameter

Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition42mm

Speedster (Silver Panda)39mm

Power Reserve

Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition72h

Speedster (Silver Panda)40h

Water Resistance

Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition300m

Speedster (Silver Panda)30m

MSRP

Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition$1,750

Speedster (Silver Panda)$299

Full specifications

Case

5 specs

Crystal & Dial

2 specs

AR Coating

Anti-reflective coating on inner surface

Inner

Lume

LumiBrite on hands, index(es) and bezel

None

Movement

3 specs

Caliber

6R54

Miyota 6S21

Power Reserve

72h

40h

Jewels

Pricing

1 specs

MSRP

$1,750

$299

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