Side by side

Bremont Altitude 39 DatevsHamilton Khaki Aviation Pilot Pioneer Mechanical Chrono

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

Altitude 39 Date
BremontAltitude 39 Date
MSRP $4,250

At a glance

10 of 29 specs differ
Diameter
Altitude 39 Date39mm
Khaki Aviation Pilot Pioneer Mechanical Chrono40mm
Power Reserve
Altitude 39 Date40h
Khaki Aviation Pilot Pioneer Mechanical Chrono60h
Water Resistance
Altitude 39 Date100m
Khaki Aviation Pilot Pioneer Mechanical Chrono100m
MSRP
Altitude 39 Date$4,250
Khaki Aviation Pilot Pioneer Mechanical Chrono$2,445

Full specifications

Case

5 specs
Diameter
39mm
40mm
Thickness
11.19mm
14.35mm
Lug-to-Lug
46mm
Lug Width
20mm
22mm
Material
316L Stainless Steel (DLC coated)
Stainless Steel

Crystal & Dial

1 specs
Dial Color
Silver
Blue

Movement

3 specs
Caliber
BE-92AE
H-51-Si
Type
Automatic
Manual
Power Reserve
40h
60h

Pricing

1 specs
MSRP
$4,250
$2,445

Follow this matchup

Get a note when Bremont Altitude 39 Date vs Hamilton Khaki Aviation Pilot Pioneer Mechanical Chrono gets more votes, a community discussion, or a price drop. No account needed.

What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Bremont Altitude 39 Date

Owners and reviewers widely praise the Bremont Altitude 39 Date as a sleek, legible, and everyday-suited pilot's watch, noting its comfortable 39mm 904L steel case and clean dial design. The La Joux-Perret G100 movement is recognized for its 68-hour power reserve and smooth winding feel. Some owners note the bracelet lacks micro-adjustments. On balance, the consensus is that the Bremont Altitude 39 Date is highly regarded for its refined finishing and wearability at 39mm.

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.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.