Side by side

Hamilton Khaki Aviation Pilot Pioneer Mechanical ChronovsSternglas Naos Automatik

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

Naos Automatik
SternglasNaos Automatik
MSRP $463
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 Pioneer Mechanical Chrono

Owners and reviewers widely praise the Hamilton Khaki Aviation Pilot Pioneer Mechanical Chrono for its authentic military design, attractive dial execution, and intriguing asymmetrical case, with many appreciating its utilitarian feel and vintage vibe. The hand-wound H-51-Si movement, offering a 60-hour power reserve and accuracy around +5 to +7 seconds per day, is also noted positively, as is the satisfying feel of manual winding. Some owners find the 36mm case size light and versatile, while others note it wears larger than its dimensions suggest. However, several sources point to the mineral crystal as a drawback compared to sapphire, and the lume is generally described as weak. The included strap is frequently criticized for being too long and uncomfortable, with many preferring it on a NATO strap. On balance, owners and reviewers rate the Hamilton Khaki Aviation Pilot Pioneer Mechanical Chrono highly for its compelling vintage military aesthetic and solid value proposition.

Sternglas Naos Automatik

The Sternglas Naos Automatik is praised for its stylish Bauhaus design and solid build quality for its price, featuring a sapphire crystal and elegant case. However, some dial text is too small and slim for easy readability, and the Milanese strap and clasp are considered lower quality, with the quick-change system also not meeting the brand's advertised standard. One owner found the 38mm model lighter than expected and preferred it over a Seiko SRP703 and an Apple Watch. Overall, owners and reviewers highlight the Sternglas Naos Automatik's attractive Bauhaus design and good value, despite some criticisms of dial legibility and strap quality.

At a glance

12 of 29 specs differ
Diameter
Khaki Aviation Pilot Pioneer Mechanical Chrono40mm
Naos Automatik38mm
Power Reserve
Khaki Aviation Pilot Pioneer Mechanical Chrono60h
Naos Automatik42h
Water Resistance
Khaki Aviation Pilot Pioneer Mechanical Chrono100m
Naos Automatik50m
MSRP
Khaki Aviation Pilot Pioneer Mechanical Chrono$2,445
Naos Automatik$463

Full specifications

Case

6 specs
Category
Pilot
Dress
Diameter
40mm
38mm
Thickness
14.35mm
12mm
Lug-to-Lug
50mm
43mm
Lug Width
22mm
20mm
Water Resistance
100m
50m

Crystal & Dial

1 specs
Dial Color
Blue

Movement

4 specs
Caliber
H-51-Si
Miyota 8215
Type
Manual
Automatic
Power Reserve
60h
42h
Jewels
25

Pricing

1 specs
MSRP
$2,445
$463
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