Which is cheaper, the Sternglas Hamburg Automatik or the Seiko Prospex SPEEDTIMER Mechanical?

At MSRP the Sternglas Hamburg Automatik is the cheaper of the two at $463, against $995 for the Seiko Prospex SPEEDTIMER Mechanical — a $532 gap before any retailer discounting.

Which is bigger, the Sternglas Hamburg Automatik or the Seiko Prospex SPEEDTIMER Mechanical?

The Sternglas Hamburg Automatik wears larger at 42mm versus 39.5mm for the Seiko Prospex SPEEDTIMER Mechanical — a 2.5mm difference across the dial.

Which has better water resistance, the Sternglas Hamburg Automatik or the Seiko Prospex SPEEDTIMER Mechanical?

The Sternglas Hamburg Automatik is rated to 50m versus 20m for the Seiko Prospex SPEEDTIMER Mechanical.

Which has a longer power reserve, the Sternglas Hamburg Automatik or the Seiko Prospex SPEEDTIMER Mechanical?

The Seiko Prospex SPEEDTIMER Mechanical carries a 72-hour power reserve against 42 hours on the Sternglas Hamburg Automatik.

What movement does the Sternglas Hamburg Automatik run compared to the Seiko Prospex SPEEDTIMER Mechanical?

Both watches run automatic movements — the Sternglas Hamburg Automatik uses the Miyota 8215 and the Seiko Prospex SPEEDTIMER Mechanical uses the 6R55.

Side by side

Sternglas Hamburg AutomatikvsSeiko Prospex SPEEDTIMER Mechanical

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

Sternglas Hamburg Automatik

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MSRP $463

Seiko Prospex SPEEDTIMER Mechanical

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MSRP $995

At a glance

12 of 29 specs differ

Diameter

Hamburg Automatik42mm

Prospex SPEEDTIMER Mechanical39.5mm

Power Reserve

Hamburg Automatik42h

Prospex SPEEDTIMER Mechanical72h

Water Resistance

Hamburg Automatik50m

Prospex SPEEDTIMER Mechanical200m

MSRP

Hamburg Automatik$463

Prospex SPEEDTIMER Mechanical$995

Full specifications

Case

4 specs

Crystal & Dial

4 specs

Crystal Shape

Flat

Curved

AR Coating

Inner

Anti-reflective coating on inner surface

Dial Color

—

Black

Lume

Luminova

LumiBrite on hands and index(es)

Movement

3 specs

Caliber

Miyota 8215

6R55

Power Reserve

42h

72h

Jewels

—

Pricing

1 specs

MSRP

$463

$995

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What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Sternglas Hamburg Automatik

Owners praise the Sternglas Hamburg Automatik's handsome design and good build quality for the price. The watch features a gold PVD case and a matte blue dial with orange Super-LumiNova, and its 42mm diameter wears well due to a short lug-to-lug distance. The Miyota 8215 movement is accurate to -20/+40 seconds per day. On balance, reviewers and owners appreciate the Sternglas Hamburg Automatik for its unique design and value.

Fratello

Seiko Prospex SPEEDTIMER Mechanical

The Seiko Prospex SPEEDTIMER Mechanical is praised for its visually appealing design and comfortable wearability, with owners frequently using its chronograph function for daily tasks. Reviewers note its clean dial layout and LumiBrite treated hands and markers, and one source highlights the 72-hour power reserve of the 6R55 movement. However, some owners criticize its chronograph functionality and the 24-hour subdial. On balance, owners and reviewers rate the Seiko Prospex SPEEDTIMER Mechanical highly for its daily usability and refined aesthetics.

Time + Tide

Monochrome

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