Which is cheaper, the Baltic Scalegraph or the Seiko Prospex SPEEDTIMER Mechanical Chronograph?

At MSRP the Baltic Scalegraph is the cheaper of the two at $1,766, against $2,500 for the Seiko Prospex SPEEDTIMER Mechanical Chronograph — a $734 gap before any retailer discounting.

Which is bigger, the Baltic Scalegraph or the Seiko Prospex SPEEDTIMER Mechanical Chronograph?

The Seiko Prospex SPEEDTIMER Mechanical Chronograph wears larger at 42mm versus 39.5mm for the Baltic Scalegraph — a 2.5mm difference across the dial.

Which has better water resistance, the Baltic Scalegraph or the Seiko Prospex SPEEDTIMER Mechanical Chronograph?

The Baltic Scalegraph is rated to 100m versus 10m for the Seiko Prospex SPEEDTIMER Mechanical Chronograph.

Which has a longer power reserve, the Baltic Scalegraph or the Seiko Prospex SPEEDTIMER Mechanical Chronograph?

The Baltic Scalegraph carries a 63-hour power reserve against 45 hours on the Seiko Prospex SPEEDTIMER Mechanical Chronograph.

What movement does the Baltic Scalegraph run compared to the Seiko Prospex SPEEDTIMER Mechanical Chronograph?

The Baltic Scalegraph runs a manual caliber (Sellita SW510), while the Seiko Prospex SPEEDTIMER Mechanical Chronograph runs a automatic (8R48).

Side by side

Baltic ScalegraphvsSeiko Prospex SPEEDTIMER Mechanical Chronograph

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

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Baltic Scalegraph

scalegraph-blue

MSRP $1,766

See the full Scalegraph

Seiko Prospex SPEEDTIMER Mechanical Chronograph

srq047j1

MSRP $2,500

See the full Prospex SPEEDTIMER Mechanical Chronograph

At a glance

12 of 29 specs differ

Diameter

Scalegraph39.5mm

Prospex SPEEDTIMER Mechanical Chronograph42mm

Power Reserve

Scalegraph63h

Prospex SPEEDTIMER Mechanical Chronograph45h

Water Resistance

Scalegraph100m

Prospex SPEEDTIMER Mechanical Chronograph100m

MSRP

Scalegraph$1,766

Prospex SPEEDTIMER Mechanical Chronograph$2,500

Full specifications

Case

3 specs

Diameter

39.5mm

42mm

Thickness

14.1mm

14.6mm

Lug-to-Lug

47mm

49.5mm

Crystal & Dial

4 specs

Crystal Shape

Flat

Curved

AR Coating

Yes

Anti-reflective coating on inner surface

Dial Color

Blue

Black

Lume

BGW9

LumiBrite on hands and index(es)

Movement

4 specs

Caliber

Sellita SW510

8R48

Type

Manual

Automatic

Power Reserve

63h

45h

Jewels

Pricing

1 specs

MSRP

$1,766

$2,500

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