Which is cheaper, the Baltic Scalegraph or the Seiko Prospex Sea?

At MSRP the Seiko Prospex Sea is the cheaper of the two at $900, against $1,766 for the Baltic Scalegraph — a $866 gap before any retailer discounting.

Which is bigger, the Baltic Scalegraph or the Seiko Prospex Sea?

The Seiko Prospex Sea wears larger at 41mm versus 39.5mm for the Baltic Scalegraph — a 1.5mm difference across the dial.

Which has better water resistance, the Baltic Scalegraph or the Seiko Prospex Sea?

The Seiko Prospex Sea is rated to 200m versus 100m for the Baltic Scalegraph.

Which has a longer power reserve, the Baltic Scalegraph or the Seiko Prospex Sea?

The Seiko Prospex Sea carries a 70-hour power reserve against 63 hours on the Baltic Scalegraph.

What movement does the Baltic Scalegraph run compared to the Seiko Prospex Sea?

The Baltic Scalegraph runs a manual caliber (Sellita SW510), while the Seiko Prospex Sea runs a automatic (Seiko 6R35).

Side by side

Baltic ScalegraphvsSeiko Prospex Sea

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

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Baltic Scalegraph

MSRP $1,766

See the full Scalegraph

Seiko Prospex Sea

MSRP $900

See the full Prospex Sea

At a glance

14 of 29 specs differ

Diameter

Scalegraph39.5mm

Prospex Sea41mm

Power Reserve

Scalegraph63h

Prospex Sea70h

Water Resistance

Scalegraph100m

Prospex Sea200m

MSRP

Scalegraph$1,766

Prospex Sea$900

Full specifications

Case

5 specs

Crystal & Dial

4 specs

Crystal Shape

—

Curved

AR Coating

Yes

Anti-reflective coating on inner surface

Dial Color

Blue

—

Lume

BGW9

LumiBrite on hands, index(es) and bezel

Movement

4 specs

Caliber

Sellita SW510

Seiko 6R35

Type

Manual

Automatic

Power Reserve

63h

70h

Jewels

Pricing

1 specs

MSRP

$1,766

$900

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Baltic ScalegraphvsSeiko Prospex Sea

At a glance

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