Which is cheaper, the Sangin Instruments Professional or the Timefactors Aerotimer?

At MSRP the Timefactors Aerotimer is the cheaper of the two at $416, against $679 for the Sangin Instruments Professional — a $263 gap before any retailer discounting.

Which is bigger, the Sangin Instruments Professional or the Timefactors Aerotimer?

The Sangin Instruments Professional wears larger at 43.5mm versus 42mm for the Timefactors Aerotimer — a 1.5mm difference across the dial.

Which has better water resistance, the Sangin Instruments Professional or the Timefactors Aerotimer?

The Sangin Instruments Professional is rated to 300m versus 100m for the Timefactors Aerotimer.

What movement does the Sangin Instruments Professional run compared to the Timefactors Aerotimer?

The Sangin Instruments Professional runs a quartz caliber (Quartz (Ronda GMT)), while the Timefactors Aerotimer runs a mecaquartz (Seiko VK64).

Side by side

Sangin Instruments ProfessionalvsTimefactors Aerotimer

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

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Sangin Instruments Professional

MSRP $679

See the full Professional

Timefactors Aerotimer

MSRP $416

See the full Aerotimer

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Buy from Timefactors ↗

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At a glance

13 of 29 specs differ

Diameter

Professional43.5mm

Aerotimer42mm

Power Reserve

Professional—

Aerotimer—

Water Resistance

Professional300m

Aerotimer100m

MSRP

Professional$679

Aerotimer$416

Full specifications

Case

6 specs

Diameter

43.5mm

42mm

Thickness

0mm

13mm

Lug-to-Lug

0mm

50mm

Lug Width

0mm

20mm

Material

—

Stainless Steel

Water Resistance

300m

100m

Crystal & Dial

3 specs

Crystal

—

Sapphire

Dial Color

Midnight Black

Black

Lume

None

SuperLuminova C3

Movement

3 specs

Caliber

Quartz (Ronda GMT)

Seiko VK64

Type

Quartz

Mecaquartz

Power Reserve

—

Pricing

1 specs

MSRP

$679

$416

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