Which is cheaper, the Seiko Prospex SPEEDTIMER or the Wolbrook JetFlyer Automatic Chronograph?

At MSRP the Wolbrook JetFlyer Automatic Chronograph is the cheaper of the two at $845, against $3,000 for the Seiko Prospex SPEEDTIMER — a $2,155 gap before any retailer discounting.

Which is bigger, the Seiko Prospex SPEEDTIMER or the Wolbrook JetFlyer Automatic Chronograph?

The Seiko Prospex SPEEDTIMER wears larger at 42.5mm versus 38mm for the Wolbrook JetFlyer Automatic Chronograph — a 4.5mm difference across the dial.

Which has better water resistance, the Seiko Prospex SPEEDTIMER or the Wolbrook JetFlyer Automatic Chronograph?

The Wolbrook JetFlyer Automatic Chronograph is rated to 100m versus 10m for the Seiko Prospex SPEEDTIMER.

Which has a longer power reserve, the Seiko Prospex SPEEDTIMER or the Wolbrook JetFlyer Automatic Chronograph?

The Seiko Prospex SPEEDTIMER carries a 45-hour power reserve against 40 hours on the Wolbrook JetFlyer Automatic Chronograph.

Side by side

Seiko Prospex SPEEDTIMERvsWolbrook JetFlyer Automatic Chronograph

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

Seiko Prospex SPEEDTIMER

srq037j1

MSRP $3,000

Wolbrook JetFlyer Automatic Chronograph

26-JFCA-001-LR6-BLK-STL

MSRP $845

At a glance

12 of 29 specs differ

Diameter

Prospex SPEEDTIMER42.5mm

JetFlyer Automatic Chronograph38mm

Power Reserve

Prospex SPEEDTIMER45h

JetFlyer Automatic Chronograph40h

Water Resistance

Prospex SPEEDTIMER100m

JetFlyer Automatic Chronograph100m

MSRP

Prospex SPEEDTIMER$3,000

JetFlyer Automatic Chronograph$845

Full specifications

Case

4 specs

Diameter

42.5mm

38mm

Thickness

15.1mm

12.1mm

Lug-to-Lug

50mm

46mm

Material

Stainless Steel

316L Stainless Steel

Crystal & Dial

4 specs

Crystal

Sapphire

Domed Sapphire

Crystal Shape

Curved

Flat

AR Coating

Anti-reflective coating on inner surface

Inner

Lume

LumiBrite on hands and index(es)

None

Movement

3 specs

Caliber

8R46

—

Power Reserve

45h

40h

Jewels

Pricing

1 specs

MSRP

$3,000

$845

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