Which is cheaper, the Hamilton Khaki Aviation Takeoff Auto Chrono or the Helgray Poseidon Diver (Automatic)?

At MSRP the Helgray Poseidon Diver (Automatic) is the cheaper of the two at $249, against $3,575 for the Hamilton Khaki Aviation Takeoff Auto Chrono — a $3,326 gap before any retailer discounting.

Which is bigger, the Hamilton Khaki Aviation Takeoff Auto Chrono or the Helgray Poseidon Diver (Automatic)?

The Hamilton Khaki Aviation Takeoff Auto Chrono wears larger at 46mm versus 40mm for the Helgray Poseidon Diver (Automatic) — a 6mm difference across the dial.

Which has better water resistance, the Hamilton Khaki Aviation Takeoff Auto Chrono or the Helgray Poseidon Diver (Automatic)?

The Helgray Poseidon Diver (Automatic) is rated to 300m versus 50m for the Hamilton Khaki Aviation Takeoff Auto Chrono.

Which has a longer power reserve, the Hamilton Khaki Aviation Takeoff Auto Chrono or the Helgray Poseidon Diver (Automatic)?

The Hamilton Khaki Aviation Takeoff Auto Chrono carries a 60-hour power reserve against 40 hours on the Helgray Poseidon Diver (Automatic).

What movement does the Hamilton Khaki Aviation Takeoff Auto Chrono run compared to the Helgray Poseidon Diver (Automatic)?

Both watches run automatic movements — the Hamilton Khaki Aviation Takeoff Auto Chrono uses the H-31 and the Helgray Poseidon Diver (Automatic) uses the NH35 Warranty.

Side by side

Hamilton Khaki Aviation Takeoff Auto ChronovsHelgray Poseidon Diver (Automatic)

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

Hamilton Khaki Aviation Takeoff Auto Chrono

h76786733

MSRP $3,575

Helgray Poseidon Diver (Automatic)

poseidon-diver-automatic

MSRP $249

At a glance

8 of 29 specs differ

Diameter

Khaki Aviation Takeoff Auto Chrono46mm

Poseidon Diver (Automatic)40mm

Power Reserve

Khaki Aviation Takeoff Auto Chrono60h

Poseidon Diver (Automatic)40h

Water Resistance

Khaki Aviation Takeoff Auto Chrono50m

Poseidon Diver (Automatic)300m

MSRP

Khaki Aviation Takeoff Auto Chrono$3,575

Poseidon Diver (Automatic)$249

Full specifications

Case

5 specs

Movement

2 specs

Caliber

H-31

NH35 Warranty

Power Reserve

60h

40h

Pricing

1 specs

MSRP

$3,575

$249

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