Which is cheaper, the Boldr Marine or the Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition?

At MSRP the Boldr Marine is the cheaper of the two at $439, against $3,300 for the Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition — a $2,861 gap before any retailer discounting.

Which is bigger, the Boldr Marine 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 Boldr Marine — a 4mm difference across the dial.

Which has a longer power reserve, the Boldr Marine 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 Boldr Marine.

What movement does the Boldr Marine run compared to the Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition?

Both watches run automatic movements — the Boldr Marine uses the NH35A and the Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition uses the 8L35.

Side by side

Boldr MarinevsSeiko 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.

Boldr Marine

marine-elewana

MSRP $439

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

sla061j1

MSRP $3,300

At a glance

12 of 29 specs differ

Diameter

Marine40mm

Prospex Sea 1970 Heritage Diver's Black Series Limited Edition44mm

Power Reserve

Marine40h

Prospex Sea 1970 Heritage Diver's Black Series Limited Edition50h

Water Resistance

Marine200m

Prospex Sea 1970 Heritage Diver's Black Series Limited Edition200m

MSRP

Marine$439

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

Full specifications

Case

4 specs

Crystal & Dial

4 specs

Crystal Shape

Flat

Curved

AR Coating

Yes

Anti-reflective coating on inner surface

Dial Color

Defender Elewana

Black

Lume

Super-LumiNova

LumiBrite on hands, index(es) and bezel

Movement

3 specs

Caliber

NH35A

8L35

Power Reserve

40h

50h

Jewels

Pricing

1 specs

MSRP

$439

$3,300

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