Which is cheaper, the Boldr Blastoise or the Sinn EZM 13.1?

At MSRP the Boldr Blastoise is the cheaper of the two at $449, against $3,780 for the Sinn EZM 13.1 — a $3,331 gap before any retailer discounting.

Which is bigger, the Boldr Blastoise or the Sinn EZM 13.1?

The Sinn EZM 13.1 wears larger at 41mm versus 40mm for the Boldr Blastoise — a 1mm difference across the dial.

Which has better water resistance, the Boldr Blastoise or the Sinn EZM 13.1?

The Sinn EZM 13.1 is rated to 500m versus 200m for the Boldr Blastoise.

Which has a longer power reserve, the Boldr Blastoise or the Sinn EZM 13.1?

The Boldr Blastoise carries a 40-hour power reserve against 38 hours on the Sinn EZM 13.1.

What movement does the Boldr Blastoise run compared to the Sinn EZM 13.1?

Both watches run automatic movements — the Boldr Blastoise uses the Seiko (SII) NH37 and the Sinn EZM 13.1 uses the SINN Movement SZ02.

Side by side

Boldr BlastoisevsSinn EZM 13.1

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

Add a watch

Boldr Blastoise

blastoise

MSRP $449

Sinn EZM 13.1

EZM 13.1

MSRP $3,780

At a glance

16 of 29 specs differ

Diameter

Blastoise40mm

EZM 13.141mm

Power Reserve

Blastoise40h

EZM 13.138h

Water Resistance

Blastoise200m

EZM 13.1500m

MSRP

Blastoise$449

EZM 13.1$3,780

Full specifications

Case

6 specs

Diameter

40mm

41mm

Thickness

12mm

15mm

Lug-to-Lug

49.5mm

—

Finish

Brushed and polished

bead-blasted

Water Resistance

200m

500m

Caseback

Solid

—

Crystal & Dial

5 specs

Crystal Shape

Flat

—

AR Coating

Inner

Underside

Dial Color

Blastoise

Black

Indices

Applied

—

Lume

Super-LumiNova

Luminescent

Movement

4 specs

Caliber

Seiko (SII) NH37

SINN Movement SZ02

Power Reserve

40h

38h

Jewels

Complications

None

Date, Chronograph

Pricing

1 specs

MSRP

$449

$3,780

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Boldr BlastoisevsSinn EZM 13.1

At a glance

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