Side by side

Serica Ref. 5303 Diving ChronometervsPhoibos Eagle Ray

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
Eagle Ray
PhoibosEagle Ray
MSRP $360

At a glance

9 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
Eagle Ray41mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Eagle Ray40h
Water Resistance
Ref. 5303 Diving Chronometer300m
Eagle Ray200m
MSRP
Ref. 5303 Diving Chronometer$1,768
Eagle Ray$360

Full specifications

Case

4 specs
Diameter
39mm
41mm
Thickness
12.2mm
13mm
Lug-to-Lug
46.5mm
47mm
Water Resistance
300m
200m

Crystal & Dial

1 specs
Dial Color
Enamel Black
Black

Movement

3 specs
Caliber
M100 COSC
SII NH35
Power Reserve
42h
40h
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$360

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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.

Phoibos Eagle Ray

The Phoibos Eagle Ray is praised for its solid build quality and affordable GMT functionality. Owners appreciate its sawtooth bezel and crown, finding it a great value for its price and features. Overall, owners rate the Phoibos Eagle Ray highly for its functional GMT complication and robust construction at an accessible price point.

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