Side by side

Hamilton Khaki Aviation Day Date AutovsZelos Helica

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
ZelosHelica
MSRP $499

At a glance

9 of 29 specs differ
Diameter
Khaki Aviation Day Date Auto42mm
Helica39mm
Power Reserve
Khaki Aviation Day Date Auto80h
Helica40h
Water Resistance
Khaki Aviation Day Date Auto100m
Helica100m
MSRP
Khaki Aviation Day Date Auto$1,125
Helica$499

Full specifications

Case

5 specs
Category
Pilot
Diver
Diameter
42mm
39mm
Thickness
12.15mm
10.5mm
Lug-to-Lug
46mm
39mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

1 specs
Dial Color
Black
39 - Wave MOP

Movement

2 specs
Caliber
H-40
Miyota 9015
Power Reserve
80h
40h

Pricing

1 specs
MSRP
$1,125
$499

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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

Owners widely praise the Zelos Helica for its stunning, often color-shifting dials, with specific mentions of the MoP, slate grey, 'Steel Blue', and red opal variants being particularly captivating and artful. The 39mm case size is noted as fitting well on smaller wrists, and the overall build quality and finishing for the price are frequently highlighted as impressive, with one owner calling it "a lot of watch for the price." Some owners appreciate the novel bracelet designs and full lume dials, while others find the bracelet and clasp edges sharp or the clasp lacking on-the-fly adjustment. Opinions on the date window are mixed, with one owner disliking it. The Zelos Helica Moonphase was considered cluttered by one owner, and its $1K USD price point was felt to be steep by another, though popular variants sold out rapidly. Overall, owners rate the Zelos Helica highly for its striking dial designs and impressive value proposition.

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