Side by side

Serica Ref. 5303 Diving ChronometervsOrient AA08 Diver Watch

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
AA08 Diver Watch
OrientAA08 Diver Watch
MSRP $390

At a glance

14 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
AA08 Diver Watch41.8mm
Power Reserve
Ref. 5303 Diving Chronometer42h
AA08 Diver Watch40h
Water Resistance
Ref. 5303 Diving Chronometer300m
AA08 Diver Watch200m
MSRP
Ref. 5303 Diving Chronometer$1,768
AA08 Diver Watch$390

Full specifications

Case

5 specs
Diameter
39mm
41.8mm
Thickness
12.2mm
12.8mm
Lug-to-Lug
46.5mm
46.8mm
Lug Width
20mm
22mm
Water Resistance
300m
200m

Crystal & Dial

3 specs
AR Coating
Yes
Inner
Dial Color
Enamel Black
Grey
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
$390

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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.

Orient AA08 Diver Watch

Owners view the Orient AA08 Diver Watch as a capable weekend and vacation timepiece, with confidence in its availability through gray market sellers. The watch is noted for its pleasing wrist presence. On balance, owners find the Orient AA08 Diver Watch to be a satisfying choice for casual wear.

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