Which is cheaper, the Hamilton Khaki Aviation Day Date Auto or the MKII Project 300?

At MSRP the Hamilton Khaki Aviation Day Date Auto is the cheaper of the two at $1,125, against $1,995 for the MKII Project 300 — a $870 gap before any retailer discounting.

Which is bigger, the Hamilton Khaki Aviation Day Date Auto or the MKII Project 300?

The Hamilton Khaki Aviation Day Date Auto wears larger at 42mm versus 41.25mm for the MKII Project 300 — a 0.8mm difference across the dial.

Which has better water resistance, the Hamilton Khaki Aviation Day Date Auto or the MKII Project 300?

The MKII Project 300 is rated to 300m versus 100m for the Hamilton Khaki Aviation Day Date Auto.

What movement does the Hamilton Khaki Aviation Day Date Auto run compared to the MKII Project 300?

Both watches run automatic movements — the Hamilton Khaki Aviation Day Date Auto uses the H-40 and the MKII Project 300 uses the ETA 2824-2.

Side by side

Hamilton Khaki Aviation Day Date AutovsMKII Project 300

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

Add a watch

Hamilton Khaki Aviation Day Date Auto

h64645131

MSRP $1,125

MKII Project 300

project-300-big-t-date-100

MSRP $1,995

At a glance

9 of 29 specs differ

Diameter

Khaki Aviation Day Date Auto42mm

Project 30041.25mm

Power Reserve

Khaki Aviation Day Date Auto80h

Project 300—

Water Resistance

Khaki Aviation Day Date Auto100m

Project 300300m

MSRP

Khaki Aviation Day Date Auto$1,125

Project 300$1,995

Full specifications

Case

5 specs

Crystal & Dial

1 specs

Dial Color

Black

—

Movement

2 specs

Caliber

H-40

ETA 2824-2

Power Reserve

80h

—

Pricing

1 specs

MSRP

$1,125

$1,995

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Spinnakermicro

Follow this matchup

Get a note when Hamilton Khaki Aviation Day Date Auto vs MKII Project 300 gets more votes, a community discussion, or a price drop. No account needed.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.

MKII Project 300vsSpinnaker Croft Pioneer Bremont BroadswordvsMKII Project 300 Marathon Steel Navigator SSNAV AutovsMKII Project 300 Bremont Boeing ModelvsMKII Project 300 Hamilton Khaki Aviation Day Date AutovsZENEA ULA DIVER Hamilton Khaki Aviation Day Date AutovsZENEA ULA

Edit this comparison Add another watch Explore more 40–43mm watches

Hamilton Khaki Aviation Day Date AutovsMKII Project 300

At a glance

Full specifications

More watches worth a look

Croft Pioneer

ULA DIVER

Broadsword

Steel Navigator SSNAV Auto

Kaitiaki

Boeing Model

Ilmari40

1980 RN Divers Automatic Re-Issue Watch

Follow this matchup

People also compared