Which is cheaper, the Hamilton Khaki Aviation X-Wind Day Date Auto or the Spinnaker Fleuss 40 Automatic?

At MSRP the Spinnaker Fleuss 40 Automatic is the cheaper of the two at $450, against $1,375 for the Hamilton Khaki Aviation X-Wind Day Date Auto — a $925 gap before any retailer discounting.

Which is bigger, the Hamilton Khaki Aviation X-Wind Day Date Auto or the Spinnaker Fleuss 40 Automatic?

The Hamilton Khaki Aviation X-Wind Day Date Auto wears larger at 45mm versus 40mm for the Spinnaker Fleuss 40 Automatic — a 5mm difference across the dial.

Which has better water resistance, the Hamilton Khaki Aviation X-Wind Day Date Auto or the Spinnaker Fleuss 40 Automatic?

The Spinnaker Fleuss 40 Automatic is rated to 150m versus 100m for the Hamilton Khaki Aviation X-Wind Day Date Auto.

Which has a longer power reserve, the Hamilton Khaki Aviation X-Wind Day Date Auto or the Spinnaker Fleuss 40 Automatic?

The Hamilton Khaki Aviation X-Wind Day Date Auto carries a 80-hour power reserve against 40 hours on the Spinnaker Fleuss 40 Automatic.

What movement does the Hamilton Khaki Aviation X-Wind Day Date Auto run compared to the Spinnaker Fleuss 40 Automatic?

Both watches run automatic movements — the Hamilton Khaki Aviation X-Wind Day Date Auto uses the H-30 and the Spinnaker Fleuss 40 Automatic uses the SII NH35A.

Side by side

Hamilton Khaki Aviation X-Wind Day Date AutovsSpinnaker Fleuss 40 Automatic

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

Hamilton Khaki Aviation X-Wind Day Date Auto

h77735560

MSRP $1,375

Spinnaker Fleuss 40 Automatic

fleuss-40-automatic-145th-limited-edition-coral-red-sp-5133-77

MSRP $450

At a glance

11 of 29 specs differ

Diameter

Khaki Aviation X-Wind Day Date Auto45mm

Fleuss 40 Automatic40mm

Power Reserve

Khaki Aviation X-Wind Day Date Auto80h

Fleuss 40 Automatic40h

Water Resistance

Khaki Aviation X-Wind Day Date Auto100m

Fleuss 40 Automatic150m

MSRP

Khaki Aviation X-Wind Day Date Auto$1,375

Fleuss 40 Automatic$450

Full specifications

Case

7 specs

Crystal & Dial

1 specs

Dial Color

Green

Coral

Movement

2 specs

Caliber

H-30

SII NH35A

Power Reserve

80h

40h

Pricing

1 specs

MSRP

$1,375

$450

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What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Hamilton Khaki Aviation X-Wind Day Date Auto

Owners widely praise the Hamilton Khaki Aviation X-Wind Day Date Auto for its value, technical aesthetic, and versatile wearability with straps. Reviewers and owners alike highlight its excellent legibility, bold Arabic numerals, and the appeal of its pilot watch design, with many appreciating the 80-hour power reserve. Some owners find the crosswind calculation functions unnecessary, and there are mixed views on the dial's font usage and color matching. Lume is frequently noted as weak, and some find the size large or the left-handed crown and pusher setup uncomfortable. Accuracy figures range from gaining 6 seconds in a few days to approximately -6 seconds per day. Overall, owners rate the Hamilton Khaki Aviation X-Wind Day Date Auto highly for its impressive value and functional pilot watch design.

Spinnaker Fleuss 40 Automatic

Owners find the Spinnaker Fleuss 40 Automatic a good size for smaller wrists, though one owner notes the lume is too diffuse for easy nighttime reading. The pilot-style crown is an unusual feature for a dive watch. Overall, owners value the Spinnaker Fleuss 40 Automatic for its wearability on smaller wrists.

From video reviewers

The coral red dial is a unique aesthetic. The watch is a strong contender for best-in-class under $300.

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