Which is cheaper, the Praesidus Marines Blt 1/8 or the Seiko 5 Sports Field series?

At MSRP the Praesidus Marines Blt 1/8 is the cheaper of the two at $150, against $450 for the Seiko 5 Sports Field series — a $300 gap before any retailer discounting.

Which is bigger, the Praesidus Marines Blt 1/8 or the Seiko 5 Sports Field series?

The Seiko 5 Sports Field series wears larger at 39.4mm versus 38mm for the Praesidus Marines Blt 1/8 — a 1.4mm difference across the dial.

Which has better water resistance, the Praesidus Marines Blt 1/8 or the Seiko 5 Sports Field series?

The Praesidus Marines Blt 1/8 is rated to 100m versus 10m for the Seiko 5 Sports Field series.

Which has a longer power reserve, the Praesidus Marines Blt 1/8 or the Seiko 5 Sports Field series?

The Seiko 5 Sports Field series carries a 41-hour power reserve against 40 hours on the Praesidus Marines Blt 1/8.

What movement does the Praesidus Marines Blt 1/8 run compared to the Seiko 5 Sports Field series?

Both watches run automatic movements — the Praesidus Marines Blt 1/8 uses the Seiko NH35 and the Seiko 5 Sports Field series uses the 4R34.

Side by side

Praesidus Marines Blt 1/8vsSeiko 5 Sports Field series

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

Praesidus Marines Blt 1/8

a-11-marines-blt-1-8

MSRP $150

Seiko 5 Sports Field series

ssk023

MSRP $450

At a glance

14 of 29 specs differ

Diameter

Marines Blt 1/838mm

5 Sports Field series39.4mm

Power Reserve

Marines Blt 1/840h

5 Sports Field series41h

Water Resistance

Marines Blt 1/8100m

5 Sports Field series100m

MSRP

Marines Blt 1/8$150

5 Sports Field series$450

Full specifications

Case

6 specs

Crystal & Dial

4 specs

Crystal

Sapphire

Hardlex

Crystal Shape

Flat

Curved

Dial Color

Marines BLT 1/8

Black

Lume

None

LumiBrite on hands and index(es)

Movement

3 specs

Caliber

Seiko NH35

4R34

Power Reserve

40h

41h

Jewels

Pricing

1 specs

MSRP

$150

$450

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