Which is cheaper, the Biatec T. G. Masaryk or the Hamilton Khaki Aviation Day Date Auto?

At MSRP the Hamilton Khaki Aviation Day Date Auto is the cheaper of the two at $1,125, against $2,214 for the Biatec T. G. Masaryk — a $1,089 gap before any retailer discounting.

Which is bigger, the Biatec T. G. Masaryk or the Hamilton Khaki Aviation Day Date Auto?

The Hamilton Khaki Aviation Day Date Auto wears larger at 42mm versus 40mm for the Biatec T. G. Masaryk — a 2mm difference across the dial.

Which has a longer power reserve, the Biatec T. G. Masaryk or the Hamilton Khaki Aviation Day Date Auto?

The Hamilton Khaki Aviation Day Date Auto carries a 80-hour power reserve against 41 hours on the Biatec T. G. Masaryk.

What movement does the Biatec T. G. Masaryk run compared to the Hamilton Khaki Aviation Day Date Auto?

Both watches run automatic movements — the Biatec T. G. Masaryk uses the Sellita SW200-1 and the Hamilton Khaki Aviation Day Date Auto uses the H-40.

Side by side

Biatec T. G. MasarykvsHamilton Khaki Aviation Day Date Auto

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

Add a watch

Biatec T. G. Masaryk

MSRP $2,214

Hamilton Khaki Aviation Day Date Auto

h64645131

MSRP $1,125

At a glance

9 of 29 specs differ

Diameter

T. G. Masaryk40mm

Khaki Aviation Day Date Auto42mm

Power Reserve

T. G. Masaryk41h

Khaki Aviation Day Date Auto80h

Water Resistance

T. G. Masaryk100m

Khaki Aviation Day Date Auto100m

MSRP

T. G. Masaryk$2,214

Khaki Aviation Day Date Auto$1,125

Full specifications

Case

5 specs

Crystal & Dial

1 specs

Dial Color

Beige

Black

Movement

2 specs

Caliber

Sellita SW200-1

H-40

Power Reserve

41h

80h

Pricing

1 specs

MSRP

—

$1,125

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.

Feynman Timekeepersmicro

Follow this matchup

Get a note when Biatec T. G. Masaryk vs Hamilton Khaki Aviation Day Date Auto 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.

Feynman Timekeepers CoalescevsHamilton Khaki Aviation Day Date Auto Hamilton Khaki Aviation Day Date AutovsMaen Manhattan 37 IFL Edition Beaufort Permian RiftvsHamilton Khaki Aviation Day Date Auto Hamilton Khaki Aviation Day Date AutovsLucky Harvey Chiming Horse Biatec T. G. MasarykvsSpinnaker Croft Pioneer Biatec T. G. MasarykvsBremont Broadsword

Edit this comparison Add another watch Explore more 39–43mm watches

Biatec T. G. MasarykvsHamilton Khaki Aviation Day Date Auto

At a glance

Full specifications

More watches worth a look

Coalesce

Croft Pioneer

Manhattan 37 IFL Edition

Broadsword

Permian Rift

Steel Navigator SSNAV Auto

Chiming Horse

Boeing Model

Follow this matchup

People also compared