Side by side

Serica Ref. 5303 Diving ChronometervsHamilton Khaki Field King Day-Date

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

Ref. 5303 Diving Chronometer
SericaRef. 5303 Diving Chronometer
MSRP $1,768
Khaki Field King Day-Date
HamiltonKhaki Field King Day-Date
MSRP $845

At a glance

12 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
Khaki Field King Day-Date40mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Khaki Field King Day-Date80h
Water Resistance
Ref. 5303 Diving Chronometer300m
Khaki Field King Day-Date100m
MSRP
Ref. 5303 Diving Chronometer$1,768
Khaki Field King Day-Date$845

Full specifications

Case

5 specs
Category
Diver
Field
Diameter
39mm
40mm
Thickness
12.2mm
11.8mm
Lug-to-Lug
46.5mm
46mm
Water Resistance
300m
100m

Crystal & Dial

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

Movement

3 specs
Caliber
M100 COSC
H-40
Power Reserve
42h
80h
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$845

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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.

Serica Ref. 5303 Diving Chronometer

Owners widely praise the Serica Ref. 5303 Diving Chronometer for its excellent wearability, definitive style, and smooth, confident bezel action. The dual scale on the bezel is noted as surprisingly useful, and the crown action, winding, and hacking are reported to work perfectly. One owner describes the Serica 5303-3 as gorgeous and unique, though another notes the crown can appear comically large. On balance, owners rate the Serica Ref. 5303 Diving Chronometer highly for its blend of unique design and robust functionality.

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.

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