Which is cheaper, the Baltic Hermétique Summer or the Trematic ZY6?

At MSRP the Baltic Hermétique Summer is the cheaper of the two at $594, against $855 for the Trematic ZY6 — a $261 gap before any retailer discounting.

Which is bigger, the Baltic Hermétique Summer or the Trematic ZY6?

The Trematic ZY6 wears larger at 38mm versus 37mm for the Baltic Hermétique Summer — a 1mm difference across the dial.

Which has better water resistance, the Baltic Hermétique Summer or the Trematic ZY6?

The Baltic Hermétique Summer is rated to 150m versus 100m for the Trematic ZY6.

Which has a longer power reserve, the Baltic Hermétique Summer or the Trematic ZY6?

The Baltic Hermétique Summer carries a 42-hour power reserve against 41 hours on the Trematic ZY6.

What movement does the Baltic Hermétique Summer run compared to the Trematic ZY6?

Both watches run automatic movements — the Baltic Hermétique Summer uses the Miyota 9039 and the Trematic ZY6 uses the Sellita SW200-1.

Side by side

Baltic Hermétique SummervsTrematic ZY6

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

Add a watch

Baltic Hermétique Summer

MSRP $594

See the full Hermétique Summer

Trematic ZY6

zy6

MSRP $855

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At a glance

11 of 29 specs differ

Diameter

Hermétique Summer37mm

ZY638mm

Power Reserve

Hermétique Summer42h

ZY641h

Water Resistance

Hermétique Summer150m

ZY6100m

MSRP

Hermétique Summer$594

ZY6$855

Full specifications

Case

5 specs

Crystal & Dial

3 specs

AR Coating

Yes

—

Dial Color

Orange

—

Lume

BGW9

None

Movement

2 specs

Caliber

Miyota 9039

Sellita SW200-1

Power Reserve

42h

41h

Pricing

1 specs

MSRP

$594

$855

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Baltic Hermétique SummervsTrematic ZY6

At a glance

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