Side by side

Hamilton Khaki Aviation Takeoff Auto ChronovsFormex Stratos UTC

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

Khaki Aviation Takeoff Auto Chrono
HamiltonKhaki Aviation Takeoff Auto Chrono
MSRP $3,575
Stratos UTC
FormexStratos UTC
MSRP $4,663
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 Takeoff Auto Chrono

The Hamilton Khaki Aviation Takeoff Auto Chrono is noted for its unique bullhead chronograph design and detachable functionality for desktop display, with a PVD case and yellow accents. Owners praise its solid construction, precise indices, and smooth bezel action, alongside a detailed champagne dial, crisp printing, and retro hands with good lume. However, its extreme thickness and 46.3mm width are flagged as compromising daily wearability, and some find the sizable crown guards hinder usability, while a rattling bracelet with a difficult-to-remove design is also mentioned. The watch uses the Hamilton H-31 automatic chronograph movement with a 60-hour power reserve and is a limited edition of 1999 units. On balance, owners and reviewers appreciate the Hamilton Khaki Aviation Takeoff Auto Chrono for its distinctive design and pilot-inspired legibility, despite practical concerns regarding its size and wearability.

Formex Stratos UTC

Owners and reviewers widely praise the Formex Stratos UTC for its user-friendly flyer GMT complication, which utilizes pushers for time-zone adjustments, and its slim 11.8mm case. The watch is noted for its intricate, hand-finished case with a multi-layer construction and excellent finishing, along with a unique two-level case design. The Dubois-Depraz module on an ETA 2892 movement is a highlight, with accuracy figures ranging from +/- 5 to +/- 7 seconds per day. However, some find the dial busy with multiple typefaces and the overall design too complex or "plug ugly," with the price near €4000 considered high by some for a newer brand. Overall, owners and reviewers rate the Formex Stratos UTC highly for its innovative GMT functionality and excellent case finishing at its price point.

At a glance

11 of 29 specs differ
Diameter
Khaki Aviation Takeoff Auto Chrono46mm
Stratos UTC41mm
Power Reserve
Khaki Aviation Takeoff Auto Chrono60h
Stratos UTC42h
Water Resistance
Khaki Aviation Takeoff Auto Chrono50m
Stratos UTC100m
MSRP
Khaki Aviation Takeoff Auto Chrono$3,575
Stratos UTC$4,663

Full specifications

Case

6 specs
Category
Pilot
GMT
Diameter
46mm
41mm
Thickness
16.2mm
11.8mm
Lug-to-Lug
46mm
47mm
Lug Width
22mm
20mm
Water Resistance
50m
100m

Crystal & Dial

2 specs
Dial Color
Black
Blue
Lume
None
Super-LumiNova

Movement

2 specs
Caliber
H-31
ETA 2892
Power Reserve
60h
42h

Pricing

1 specs
MSRP
$3,575
$4,663
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