Side by side

Hamilton Khaki Aviation Pilot Pioneer Mechanical ChronovsBoldr The Boys

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

The Boys
BoldrThe Boys
MSRP $299

At a glance

14 of 29 specs differ
Diameter
Khaki Aviation Pilot Pioneer Mechanical Chrono40mm
The Boys38mm
Power Reserve
Khaki Aviation Pilot Pioneer Mechanical Chrono60h
The Boys40h
Water Resistance
Khaki Aviation Pilot Pioneer Mechanical Chrono100m
The Boys200m
MSRP
Khaki Aviation Pilot Pioneer Mechanical Chrono$2,445
The Boys$299

Full specifications

Case

7 specs
Category
Pilot
Tool
Diameter
40mm
38mm
Thickness
14.35mm
12mm
Lug-to-Lug
50mm
44mm
Lug Width
22mm
20mm
Material
Stainless Steel
Titanium
Water Resistance
100m
200m

Crystal & Dial

3 specs
AR Coating
Inner
Yes
Dial Color
Blue
The Boys' Brigade 90th Anniversary Edition
Lume
None
Super-LumiNova

Movement

3 specs
Caliber
H-51-Si
Seiko NH35A
Type
Manual
Automatic
Power Reserve
60h
40h

Pricing

1 specs
MSRP
$2,445
$299

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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 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.

Boldr The Boys

Boldr The Boys is praised for its lightweight, durable titanium case, ergonomic lugs, and excellent legibility with strong lume. Owners note the competitive price and good customer service, while reviewers highlight the reliable SII NH35A movement and 200m water resistance. Some owners report that titanium scratches easily and question the brand's history and recognition. On balance, owners and reviewers rate Boldr The Boys highly for its practical features and value at $299.

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