Side by side

Serica Ref. 5303 Diving ChronometervsKUOE OLD SMITH 90-001

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
OLD SMITH 90-001
KUOEOLD SMITH 90-001
MSRP $405

At a glance

14 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
OLD SMITH 90-00135mm
Power Reserve
Ref. 5303 Diving Chronometer42h
OLD SMITH 90-00140h
Water Resistance
Ref. 5303 Diving Chronometer300m
OLD SMITH 90-00150m
MSRP
Ref. 5303 Diving Chronometer$1,768
OLD SMITH 90-001$405

Full specifications

Case

6 specs
Category
Diver
Dress
Diameter
39mm
35mm
Thickness
12.2mm
10mm
Lug-to-Lug
46.5mm
42mm
Lug Width
20mm
18mm
Water Resistance
300m
50m

Crystal & Dial

3 specs
Crystal Shape
Flat
Dome
Dial Color
Enamel Black
Gold
Lume
Super-LumiNova
None

Movement

4 specs
Caliber
M100 COSC
TMI VD78A
Type
Automatic
Quartz
Power Reserve
42h
40h
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$405

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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.

KUOE OLD SMITH 90-001

KUOE OLD SMITH is widely praised for its vintage aesthetic and comfortable 35mm wearability, with owners noting its attractive bronze case and dial contrast. Reviewers and owners alike highlight its excellent accuracy. However, the case finishing is considered average for the price, and the lume fades quickly. Some find the small date window difficult to read, and the Seiko NH38 movement is described as noisy. The 18mm lug width and PVD-coated strap hardware are also noted as drawbacks. Overall, owners and reviewers find the KUOE OLD SMITH to be a compelling vintage field watch offering good value, particularly for its aesthetic appeal and accuracy.

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