Side by side

Serica Ref. 5303 Diving ChronometervsOrient Kanno

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
Kanno
OrientKanno
MSRP $320
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.

Orient Kanno

Owners widely praise the Orient Kanno for its refined style and build quality, with one owner specifically preferring its design to another model for its elegance. The bezel color is also a noted positive. However, owners frequently complain about the bracelets, and the 44mm case with a 50mm lug-to-lug is considered large by some. On balance, owners rate the Orient Kanno highly for its refined style and build quality at its price point.

At a glance

18 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
Kanno44mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Kanno40h
Water Resistance
Ref. 5303 Diving Chronometer300m
Kanno200m
MSRP
Ref. 5303 Diving Chronometer$1,768
Kanno$320

Full specifications

Case

6 specs
Diameter
39mm
44mm
Thickness
12.2mm
12.9mm
Lug-to-Lug
46.5mm
50.5mm
Lug Width
20mm
22mm
Finish
Brushed and polished
Brushed + Polished
Water Resistance
300m
200m

Crystal & Dial

6 specs
Crystal
Sapphire
Mineral
Crystal Shape
Flat
AR Coating
Yes
Dial Color
Enamel Black
Black
Indices
Applied
Lume
Super-LumiNova
None

Movement

5 specs
Caliber
M100 COSC
F6922
Beat Rate
28,800 vph
21,600 vph
Power Reserve
42h
40h
Jewels
25
22
Complications
COSC
Day-date

Pricing

1 specs
MSRP
$1,768
$320
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