Side by side

Hamilton Khaki Field King Day-DatevsOak & Oscar The Olmsted ExP-01

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

Khaki Field King Day-Date
HamiltonKhaki Field King Day-Date
MSRP $845
The Olmsted ExP-01
Oak & OscarThe Olmsted ExP-01
MSRP $1,775

At a glance

12 of 29 specs differ
Diameter
Khaki Field King Day-Date40mm
The Olmsted ExP-0138mm
Power Reserve
Khaki Field King Day-Date80h
The Olmsted ExP-0142h
Water Resistance
Khaki Field King Day-Date100m
The Olmsted ExP-01100m
MSRP
Khaki Field King Day-Date$845
The Olmsted ExP-01$1,775

Full specifications

Case

4 specs
Diameter
40mm
38mm
Thickness
11.8mm
10.8mm
Lug-to-Lug
46mm
44.9mm
Material
Stainless Steel
316L Heat-treated Stainless Steel

Crystal & Dial

3 specs
Crystal Shape
Flat
Double-domed
AR Coating
Inner
Underside
Lume
None
Super-LumiNova

Movement

4 specs
Caliber
H-40
Sellita SW300
Beat Rate
28,800 vph
4 vph
Power Reserve
80h
42h
Complications
None
GMT, Chronograph, Date

Pricing

1 specs
MSRP
$845
$1,775

Follow this matchup

Get a note when Hamilton Khaki Field King Day-Date vs Oak & Oscar The Olmsted ExP-01 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.

Hamilton Khaki Field King Day-Date

Hamilton Khaki Field King Day-Date owners widely praise its classic styling, 80-hour power reserve, and excellent value. Opinions on water resistance are split; some express concern over the 50m rating, while others find it sufficient for daily wear and swimming. One owner notes the stock strap can be stiff. Service costs range from $55 for routine maintenance to $220 for full service with movement replacement. On balance, owners rate the Hamilton Khaki Field King Day-Date highly for its classic aesthetics and impressive power reserve at its price point.

From video reviewers

The 80-hour power reserve from the H-40 automatic movement is a significant strength. The 50-meter water resistance is considered a limitation for a field watch.

Oak & Oscar The Olmsted ExP-01

Owners widely praise Oak & Oscar The Olmsted ExP-01 for its exceptional finishing, comfortable bracelet, and smooth movement. The dial designs are a frequent point of admiration, with specific appreciation for the white, navy, and gray variants, as well as the orange seconds hand. The watch is considered fairly priced at around $1.5k and is noted for its versatility and "soul." On balance, owners rate Oak & Oscar The Olmsted ExP-01 highly for its overall quality, design, and the brand's customer service.

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.