Which is cheaper, the Sinn 556 I WT or the Boldr Marine?

At MSRP the Boldr Marine is the cheaper of the two at $439, against $2,106 for the Sinn 556 I WT — a $1,667 gap before any retailer discounting.

Which is bigger, the Sinn 556 I WT or the Boldr Marine?

The Boldr Marine wears larger at 40mm versus 38.5mm for the Sinn 556 I WT — a 1.5mm difference across the dial.

What movement does the Sinn 556 I WT run compared to the Boldr Marine?

Both watches run automatic movements — the Sinn 556 I WT uses the Sellita SW200-1 and the Boldr Marine uses the Seiko NH35.

Side by side

Sinn 556 I WTvsBoldr Marine

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

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Sinn 556 I WT

556 I WT

MSRP $2,106

See the full 556 I WT

MSRP $439

At a glance

15 of 29 specs differ

Diameter

556 I WT38.5mm

Marine40mm

Power Reserve

556 I WT38h

Marine—

Water Resistance

556 I WT200m

Marine200m

MSRP

556 I WT$2,106

Marine$439

Full specifications

Case

5 specs

Diameter

38.5mm

40mm

Thickness

11mm

12.3mm

Lug-to-Lug

—

46mm

Finish

satinized

—

Caseback

—

Crystal & Dial

5 specs

Crystal Shape

—

AR Coating

Underside

Yes

Dial Color

Red

Defender Elewana

Indices

Applied

—

Lume

Luminescent

Super-LumiNova

Movement

4 specs

Caliber

Sellita SW200-1

Seiko NH35

Beat Rate

28,800 vph

0 vph

Power Reserve

38h

Jewels

Pricing

1 specs

MSRP

$2,106

$439

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Sinn 556 I WTvsBoldr Marine

At a glance

Full specifications

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