Which is cheaper, the Seiko King Seiko KSK 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 $1,900 for the Seiko King Seiko KSK — a $1,401 gap before any retailer discounting.

Which is bigger, the Seiko King Seiko KSK or the Boldr The T Rex By Boldr X Nitecore?

The Boldr The T Rex By Boldr X Nitecore wears larger at 40mm versus 36.1mm for the Seiko King Seiko KSK — a 3.9mm difference across the dial.

Which has better water resistance, the Seiko King Seiko KSK or the Boldr The T Rex By Boldr X Nitecore?

The Boldr The T Rex By Boldr X Nitecore is rated to 200m versus 10m for the Seiko King Seiko KSK.

Which has a longer power reserve, the Seiko King Seiko KSK or the Boldr The T Rex By Boldr X Nitecore?

The Seiko King Seiko KSK carries a 72-hour power reserve against 40 hours on the Boldr The T Rex By Boldr X Nitecore.

What movement does the Seiko King Seiko KSK run compared to the Boldr The T Rex By Boldr X Nitecore?

Both watches run automatic movements — the Seiko King Seiko KSK uses the 6R51 and the Boldr The T Rex By Boldr X Nitecore uses the Seiko NH35A.

Side by side

Seiko King Seiko KSKvsBoldr The T Rex By Boldr X Nitecore

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

Seiko King Seiko KSK

spb457j1

MSRP $1,900

Boldr The T Rex By Boldr X Nitecore

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

MSRP $499

At a glance

14 of 29 specs differ

Diameter

King Seiko KSK36.1mm

The T Rex By Boldr X Nitecore40mm

Power Reserve

King Seiko KSK72h

The T Rex By Boldr X Nitecore40h

Water Resistance

King Seiko KSK100m

The T Rex By Boldr X Nitecore200m

MSRP

King Seiko KSK$1,900

The T Rex By Boldr X Nitecore$499

Full specifications

Case

6 specs

Crystal & Dial

4 specs

Crystal Shape

Box

Flat

AR Coating

Anti-reflective coating on inner surface

Yes

Dial Color

Black

T-Rex by BOLDR x Nitecore

Lume

LumiBrite on hands and index(es)

Super-LumiNova

Movement

3 specs

Caliber

6R51

Seiko NH35A

Power Reserve

72h

40h

Jewels

Pricing

1 specs

MSRP

$1,900

$499

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