Side by side

Hamilton Khaki Aviation Takeoff Auto ChronovsBoldr Odyssey Freediver

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
Odyssey Freediver
BoldrOdyssey Freediver
MSRP $649

At a glance

12 of 29 specs differ
Diameter
Khaki Aviation Takeoff Auto Chrono46mm
Odyssey Freediver40mm
Power Reserve
Khaki Aviation Takeoff Auto Chrono60h
Odyssey Freediver40h
Water Resistance
Khaki Aviation Takeoff Auto Chrono50m
Odyssey Freediver300m
MSRP
Khaki Aviation Takeoff Auto Chrono$3,575
Odyssey Freediver$649

Full specifications

Case

6 specs
Category
Pilot
Diver
Diameter
46mm
40mm
Thickness
16.2mm
14.2mm
Lug-to-Lug
46mm
48mm
Lug Width
22mm
20mm
Water Resistance
50m
300m

Crystal & Dial

3 specs
AR Coating
Inner
Yes
Dial Color
Black
202
Lume
None
Super-LumiNova

Movement

2 specs
Caliber
H-31
Cal
Power Reserve
60h
40h

Pricing

1 specs
MSRP
$3,575
$649

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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 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.

Boldr Odyssey Freediver

The Boldr Odyssey Freediver is praised for its bead-blasted steel case with polished bevels and a custom steel bracelet designed for wrist curvature. Reviewers note its strong legibility, applied details, and vintage-inspired date window on fresh dial colors. The 44mm case is surgical-grade steel with a brushed finish and angular lugs, water-resistant to 300 meters. It houses a Miyota 9075 movement with a jumping local hour function. On balance, reviewers highlight the Boldr Odyssey Freediver's thoughtful case finishing and functional movement with a local hour complication.

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