Which is cheaper, the Seiko Prospex Sea Save the Ocean Special Edition or the Boldr The T Rex By Boldr X Nitecore?

At MSRP the Boldr The T Rex By Boldr X Nitecore is the cheaper of the two at $499, against $625 for the Seiko Prospex Sea Save the Ocean Special Edition — a $126 gap before any retailer discounting.

Which is bigger, the Seiko Prospex Sea Save the Ocean Special Edition or the Boldr The T Rex By Boldr X Nitecore?

The Seiko Prospex Sea Save the Ocean Special Edition wears larger at 45mm versus 40mm for the Boldr The T Rex By Boldr X Nitecore — a 5mm difference across the dial.

Which has a longer power reserve, the Seiko Prospex Sea Save the Ocean Special Edition or the Boldr The T Rex By Boldr X Nitecore?

The Seiko Prospex Sea Save the Ocean Special Edition carries a 41-hour power reserve against 40 hours on the Boldr The T Rex By Boldr X Nitecore.

What movement does the Seiko Prospex Sea Save the Ocean Special Edition run compared to the Boldr The T Rex By Boldr X Nitecore?

Both watches run automatic movements — the Seiko Prospex Sea Save the Ocean Special Edition uses the 4R36 and the Boldr The T Rex By Boldr X Nitecore uses the Seiko NH35A.

Side by side

Seiko Prospex Sea Save the Ocean Special EditionvsBoldr The T Rex By Boldr X Nitecore

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

Seiko Prospex Sea Save the Ocean Special Edition

srpf77

MSRP $625

Boldr The T Rex By Boldr X Nitecore

the-t-rex-by-boldr-x-nitecore

MSRP $499

At a glance

11 of 29 specs differ

Diameter

Prospex Sea Save the Ocean Special Edition45mm

The T Rex By Boldr X Nitecore40mm

Power Reserve

Prospex Sea Save the Ocean Special Edition41h

The T Rex By Boldr X Nitecore40h

Water Resistance

Prospex Sea Save the Ocean Special Edition200m

The T Rex By Boldr X Nitecore200m

MSRP

Prospex Sea Save the Ocean Special Edition$625

The T Rex By Boldr X Nitecore$499

Full specifications

Case

4 specs

Diameter

45mm

40mm

Thickness

13.2mm

12.3mm

Lug-to-Lug

47.7mm

46mm

Lug Width

22mm

20mm

Crystal & Dial

3 specs

AR Coating

Anti-reflective coating on inner surface

Yes

Dial Color

Black

T-Rex by BOLDR x Nitecore

Lume

LumiBrite on hands, index(es) and bezel

Super-LumiNova

Movement

3 specs

Caliber

4R36

Seiko NH35A

Power Reserve

41h

40h

Jewels

Pricing

1 specs

MSRP

$625

$499

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