Which has better water resistance, the Hamilton Khaki Aviation Pilot Pioneer Mechanical Chrono or the Sheffield 1A 38?

The Sheffield 1A 38 is rated to 200m versus 100m for the Hamilton Khaki Aviation Pilot Pioneer Mechanical Chrono.

Side by side

Hamilton Khaki Aviation Pilot Pioneer Mechanical ChronovsSheffield 1A 38

Q: Which is cheaper, the Hamilton Khaki Aviation Pilot Pioneer Mechanical Chrono or the Sheffield 1A 38?

At MSRP the Sheffield 1A 38 is the cheaper of the two at $238, against $2,445 for the Hamilton Khaki Aviation Pilot Pioneer Mechanical Chrono — a $2,207 gap before any retailer discounting.

Q: Which is bigger, the Hamilton Khaki Aviation Pilot Pioneer Mechanical Chrono or the Sheffield 1A 38?

The Hamilton Khaki Aviation Pilot Pioneer Mechanical Chrono wears larger at 40mm versus 38mm for the Sheffield 1A 38 — a 2mm difference across the dial.

Q: What movement does the Hamilton Khaki Aviation Pilot Pioneer Mechanical Chrono run compared to the Sheffield 1A 38?

The Hamilton Khaki Aviation Pilot Pioneer Mechanical Chrono runs a manual caliber (H-51-Si), while the Sheffield 1A 38 runs a automatic (Seiko NH35).

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

Add a watch

Hamilton Khaki Aviation Pilot Pioneer Mechanical Chrono

h76409140

MSRP $2,445

Sheffield 1A 38

1a-38-blue

MSRP $238

At a glance

10 of 29 specs differ

Diameter

Khaki Aviation Pilot Pioneer Mechanical Chrono40mm

1A 3838mm

Power Reserve

Khaki Aviation Pilot Pioneer Mechanical Chrono60h

1A 38—

Water Resistance

Khaki Aviation Pilot Pioneer Mechanical Chrono100m

1A 38200m

MSRP

Khaki Aviation Pilot Pioneer Mechanical Chrono$2,445

1A 38$238

Full specifications

Case

6 specs

Movement

3 specs

Caliber

H-51-Si

Seiko NH35

Type

Manual

Automatic

Power Reserve

60h

—

Pricing

1 specs

MSRP

$2,445

$238

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.

Hemelmicro

Air Support

Follow this matchup

Get a note when Hamilton Khaki Aviation Pilot Pioneer Mechanical Chrono vs Sheffield 1A 38 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.

Hemel HFC Mechanical ChronographvsSheffield 1A 38 Baltic Scalegraph ClassicvsSheffield 1A 38 Sheffield 1A 38vsYema Flygraf Navigator Bremont VulcanvsSheffield 1A 38 Hamilton Khaki Aviation Pilot Pioneer Mechanical ChronovsSheffield 1A 38 dive 38mm, 3-hand date (rotating dive bezel, perforated rubber strap)Hamilton Khaki Aviation Pilot Pioneer Mechanical ChronovsSheffield 1A

Edit this comparison Add another watch Explore more 37–41mm watches

Hamilton Khaki Aviation Pilot Pioneer Mechanical ChronovsSheffield 1A 38

At a glance

Full specifications

More watches worth a look

HFC Mechanical Chronograph

Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311

Scalegraph Classic

Swordfish 3

Flygraf Navigator

The T Rex By Boldr X Nitecore

Vulcan

Fearless

Follow this matchup

People also compared