Side by side

Hamilton Khaki Aviation Day Date AutovsZelos Helica Moonphase

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

Khaki Aviation Day Date Auto
HamiltonKhaki Aviation Day Date Auto
MSRP $1,125
Helica Moonphase
ZelosHelica Moonphase
MSRP $1,049

At a glance

9 of 29 specs differ
Diameter
Khaki Aviation Day Date Auto42mm
Helica Moonphase39mm
Power Reserve
Khaki Aviation Day Date Auto80h
Helica Moonphase40h
Water Resistance
Khaki Aviation Day Date Auto100m
Helica Moonphase100m
MSRP
Khaki Aviation Day Date Auto$1,125
Helica Moonphase$1,049

Full specifications

Case

5 specs
Category
Pilot
Moonphase
Diameter
42mm
39mm
Thickness
12.15mm
10mm
Lug-to-Lug
46mm
39mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

1 specs
Dial Color
Black
Meteorite

Movement

2 specs
Caliber
H-40
Sellita SW288 Moonphase
Power Reserve
80h
40h

Pricing

1 specs
MSRP
$1,125
$1,049

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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 Day Date Auto

Owners and reviewers widely praise the Hamilton Khaki Aviation Day Date Auto for its handsome, legible dial with raised indices and day/date complications, and its versatile, modern pilot watch design. The fully brushed case and good lume are noted strengths, with one owner finding it wears comfortably on a NATO strap. The H-10 caliber offers an 80-hour power reserve, though its decoration and regulation are less refined. Some find the 42mm size large and the skeletonized hour hand tip visually unappealing, while others note the AR coating is decent but not exceptional. Overall, owners and reviewers rate the Hamilton Khaki Aviation Day Date Auto highly for its practical design and value at its price point.

Zelos Helica Moonphase

Owners widely praise the Zelos Helica Moonphase for its gorgeous aventurine dial, unique industrial-dress aesthetic, and comfortable wearability, with one owner calling it spectacular and another their favorite Zelos. The moonphase complication is frequently highlighted as beautiful, though some find the double moon distracting or the dial cluttered. A manual-wind movement combined with a screw-down crown is noted as a drawback by some, requiring adjustment and potentially feeling fragile when fully wound, while one owner reports a 43-hour power reserve. On balance, owners rate the Zelos Helica Moonphase highly for its stunning aventurine dial and unique design at its price point.

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