Side by side

Hamilton Khaki Aviation Pilot Day-Date - Air Zermatt AutovsZelos Spearfish 3

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

Spearfish 3
ZelosSpearfish 3
MSRP $749

At a glance

10 of 29 specs differ
Diameter
Khaki Aviation Pilot Day-Date - Air Zermatt Auto42mm
Spearfish 340mm
Power Reserve
Khaki Aviation Pilot Day-Date - Air Zermatt Auto80h
Spearfish 340h
Water Resistance
Khaki Aviation Pilot Day-Date - Air Zermatt Auto100m
Spearfish 3200m
MSRP
Khaki Aviation Pilot Day-Date - Air Zermatt Auto$1,075
Spearfish 3$749

Full specifications

Case

6 specs
Category
Pilot
Diver
Diameter
42mm
40mm
Thickness
12.15mm
11.5mm
Lug-to-Lug
46mm
40mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
100m
200m

Crystal & Dial

1 specs
Dial Color
Black
Diver - Forged Carbon

Movement

2 specs
Caliber
H-40
La Joux-Perret G100
Power Reserve
80h
40h

Pricing

1 specs
MSRP
$1,075
$749

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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 Pilot Day-Date - Air Zermatt Auto

The Hamilton Khaki Aviation Pilot Day-Date - Air Zermatt Auto is widely praised for its value, with reviewers noting the Swatch Group's economies of scale contribute to its affordability. Owners and reviewers highlight the large, easy-to-read dial, with one source specifically mentioning the "ice-cold" blue degradé sub-dials as an unusual chromatic anomaly for its price point, and another noting the painted, luminous indices as a significant advantage. The 42mm case is described as offering a nice mix of brushed and polished finishes, and the slightly domed sapphire crystal enhances readability. The H-21 caliber provides a 60-hour power reserve and an anti-magnetic silicon balance spring, while the ETA 2834-2 movement offers precise day/date changes, though one source notes its 40-hour power reserve requires weekly winding. Some criticism is directed at the use of three different fonts and inconsistent color matching for the day/date indicators.

Zelos Spearfish 3

The Zelos Spearfish 3 is widely praised for its exceptional finishing, with razor-sharp polish and flawless brushed transitions that owners feel exceed its price point. The 40mm case is noted for its wearability, and the La Joux-Perret G100 movement offers a 68-hour power reserve, with reported accuracy averaging +2.6 seconds per day. Reviewers highlight the exceptionally smooth bi-directional bezel and a tool-less micro-adjustment clasp described as best-in-class among microbrands. The sapphire sandwich construction and lumed bezel are also cited as desirable features. Overall, owners and reviewers rate the Zelos Spearfish 3 highly for its outstanding finishing and value at its price point.

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