Which is cheaper, the Tudor Black Bay One 31 S&G or the Vaer D4 Outerknown Solar Diver?

At MSRP the Vaer D4 Outerknown Solar Diver is the cheaper of the two at $549, against $6,850 for the Tudor Black Bay One 31 S&G — a $6,301 gap before any retailer discounting.

Which is bigger, the Tudor Black Bay One 31 S&G or the Vaer D4 Outerknown Solar Diver?

The Vaer D4 Outerknown Solar Diver wears larger at 39mm versus 31mm for the Tudor Black Bay One 31 S&G — a 8mm difference across the dial.

Which has better water resistance, the Tudor Black Bay One 31 S&G or the Vaer D4 Outerknown Solar Diver?

The Vaer D4 Outerknown Solar Diver is rated to 200m versus 100m for the Tudor Black Bay One 31 S&G.

Which has a longer power reserve, the Tudor Black Bay One 31 S&G or the Vaer D4 Outerknown Solar Diver?

The Tudor Black Bay One 31 S&G carries a 50-hour power reserve against 40 hours on the Vaer D4 Outerknown Solar Diver.

What movement does the Tudor Black Bay One 31 S&G run compared to the Vaer D4 Outerknown Solar Diver?

The Tudor Black Bay One 31 S&G runs a automatic caliber (MT5201), while the Vaer D4 Outerknown Solar Diver runs a quartz.

Side by side

Tudor Black Bay One 31 S&GvsVaer D4 Outerknown Solar Diver

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

Tudor Black Bay One 31 S&G

m79603-0001

MSRP $6,850

Vaer D4 Outerknown Solar Diver

d4-outerknown-usa-solar-diver-marine

MSRP $549

At a glance

14 of 29 specs differ

Diameter

Black Bay One 31 S&G31mm

D4 Outerknown Solar Diver39mm

Power Reserve

Black Bay One 31 S&G50h

D4 Outerknown Solar Diver40h

Water Resistance

Black Bay One 31 S&G100m

D4 Outerknown Solar Diver200m

MSRP

Black Bay One 31 S&G$6,850

D4 Outerknown Solar Diver$549

Full specifications

Case

8 specs

Crystal & Dial

2 specs

Crystal

Sapphire

Domed Sapphire

Dial Color

Black

Blue

Movement

3 specs

Caliber

MT5201

—

Type

Automatic

Quartz

Power Reserve

50h

40h

Pricing

1 specs

MSRP

$6,850

$549

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