Which is cheaper, the Biatec T. G. Masaryk or the Seiko Prospex SPEEDTIMER?

At MSRP the Biatec T. G. Masaryk is the cheaper of the two at $2,214, against $3,000 for the Seiko Prospex SPEEDTIMER — a $786 gap before any retailer discounting.

Which is bigger, the Biatec T. G. Masaryk or the Seiko Prospex SPEEDTIMER?

The Seiko Prospex SPEEDTIMER wears larger at 42.5mm versus 40mm for the Biatec T. G. Masaryk — a 2.5mm difference across the dial.

Which has better water resistance, the Biatec T. G. Masaryk or the Seiko Prospex SPEEDTIMER?

The Biatec T. G. Masaryk is rated to 100m versus 10m for the Seiko Prospex SPEEDTIMER.

Which has a longer power reserve, the Biatec T. G. Masaryk or the Seiko Prospex SPEEDTIMER?

The Seiko Prospex SPEEDTIMER carries a 45-hour power reserve against 41 hours on the Biatec T. G. Masaryk.

What movement does the Biatec T. G. Masaryk run compared to the Seiko Prospex SPEEDTIMER?

Both watches run automatic movements — the Biatec T. G. Masaryk uses the Sellita SW200-1 and the Seiko Prospex SPEEDTIMER uses the Seiko 8R46.

Side by side

Biatec T. G. MasarykvsSeiko Prospex SPEEDTIMER

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

Add a watch

Biatec T. G. Masaryk

MSRP $2,214

See the full T. G. Masaryk

Seiko Prospex SPEEDTIMER

MSRP $3,000

See the full Prospex SPEEDTIMER

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At a glance

13 of 29 specs differ

Diameter

T. G. Masaryk40mm

Prospex SPEEDTIMER42.5mm

Power Reserve

T. G. Masaryk41h

Prospex SPEEDTIMER45h

Water Resistance

T. G. Masaryk100m

Prospex SPEEDTIMER100m

MSRP

T. G. Masaryk$2,214

Prospex SPEEDTIMER$3,000

Full specifications

Case

5 specs

Crystal & Dial

4 specs

Crystal Shape

—

Curved

AR Coating

—

Anti-reflective coating on inner surface

Dial Color

Beige

—

Lume

None

LumiBrite on hands and index(es)

Movement

3 specs

Caliber

Sellita SW200-1

Seiko 8R46

Power Reserve

41h

45h

Jewels

Pricing

1 specs

MSRP

$2,214

$3,000

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Biatec T. G. MasarykvsSeiko Prospex SPEEDTIMER

At a glance

Full specifications

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