Side by side

Serica Ref. 5303 Diving ChronometervsHamilton Khaki Field Day Date Auto

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 Day Date Auto
HamiltonKhaki Field Day Date Auto
MSRP $895

At a glance

12 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
Khaki Field Day Date Auto42mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Khaki Field Day Date Auto80h
Water Resistance
Ref. 5303 Diving Chronometer300m
Khaki Field Day Date Auto50m
MSRP
Ref. 5303 Diving Chronometer$1,768
Khaki Field Day Date Auto$895

Full specifications

Case

5 specs
Category
Diver
Field
Diameter
39mm
42mm
Thickness
12.2mm
11.2mm
Lug-to-Lug
46.5mm
46mm
Water Resistance
300m
50m

Crystal & Dial

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

Movement

3 specs
Caliber
M100 COSC
H-30
Power Reserve
42h
80h
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$895

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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 Day Date Auto

Owners widely praise the Hamilton Khaki Field Day Date Auto for its robust build, clear dial legibility, and versatility as a "go anywhere, do anything" watch, connecting them to a classic aesthetic and historical significance. Reviewers and owners alike highlight its value, with some noting the 80-hour power reserve from the H10 movement and 100m water resistance. However, some owners find its lume intensity and longevity inexcusable, and a common criticism of Hamilton watches is the lack of AR coating on the crystal. The bracelet finish and overall appearance are points of contention, with some considering it plain or overrated while others praise its finishing and attractive PVD. Accuracy ranges from excellent to simply "ok," with no consensus on movement quality. Overall, owners and reviewers rate the Hamilton Khaki Field Day Date Auto highly for its classic aesthetic, robust build, and value as an entry-level automatic field watch.

From video reviewers

The 80-hour power reserve from the H-40 movement is a significant strength. The 50-meter water resistance is considered limited for a field watch. Reviewers disagreed on the bracelet quality, with one noting rattle and another not mentioning it.

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