Which is cheaper, the Seestern S446 GMT or the Timefactors Aerotimer?

At MSRP the Seestern S446 GMT is the cheaper of the two at $299, against $416 for the Timefactors Aerotimer — a $117 gap before any retailer discounting.

Which is bigger, the Seestern S446 GMT or the Timefactors Aerotimer?

The Timefactors Aerotimer wears larger at 42mm versus 39.5mm for the Seestern S446 GMT — a 2.5mm difference across the dial.

What movement does the Seestern S446 GMT run compared to the Timefactors Aerotimer?

The Seestern S446 GMT runs a automatic gmt caliber (Seiko NH34A GMT), while the Timefactors Aerotimer runs a mecaquartz (Seiko VK64 (Meca-Quartz)).

Side by side

Seestern S446 GMTvsTimefactors Aerotimer

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

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Seestern S446 GMT

S446.BS

MSRP $299

Timefactors Aerotimer

precista-prs-45-aerotimer

MSRP $416

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Buy used on eBay ↗

Buy from Timefactors ↗

Buy used on eBay ↗

At a glance

14 of 29 specs differ

Diameter

S446 GMT39.5mm

Aerotimer42mm

Power Reserve

S446 GMT41hh

Aerotimer—

Water Resistance

S446 GMT100m

Aerotimer100m

MSRP

S446 GMT$299

Aerotimer$416

Full specifications

Case

4 specs

Crystal & Dial

3 specs

Crystal Shape

Domed

Flat

Dial Color

Cream

Black

Lume

None

SuperLuminova C3

Movement

6 specs

Caliber

Seiko NH34A GMT

Seiko VK64 (Meca-Quartz)

Type

Automatic

Mecaquartz

Beat Rate

3 vph

28,800 vph

Power Reserve

41hh

—

Jewels

Complications

GMT, Date

None

Pricing

1 specs

MSRP

$299

$416

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Seestern S446 GMTvsTimefactors Aerotimer

At a glance

Full specifications

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