Side by side

Serica Ref. 5303 Diving ChronometervsPhoibos Eagle Ray GMT

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 GMT
PhoibosEagle Ray GMT
MSRP $250

At a glance

10 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
Eagle Ray GMT41mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Eagle Ray GMT40h
Water Resistance
Ref. 5303 Diving Chronometer300m
Eagle Ray GMT300m
MSRP
Ref. 5303 Diving Chronometer$1,768
Eagle Ray GMT$250

Full specifications

Case

4 specs
Category
Diver
GMT
Diameter
39mm
41mm
Thickness
12.2mm
10.5mm
Lug-to-Lug
46.5mm
47mm

Crystal & Dial

1 specs
Dial Color
Enamel Black
Black

Movement

4 specs
Caliber
M100 COSC
SWISS RONDA 515-24H
Type
Automatic
Quartz
Power Reserve
42h
40h
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$250

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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 GMT

Owners widely praise the Phoibos Eagle Ray GMT for its perfect dial, attractive case finishing, and the Miyota 9015 movement, with the vintage gold coloring and second hand hitting all indices noted as highlights. One owner called it a "love at first sight" purchase. However, some owners question the crystal's reflectivity and readability, and the 47mm lug-to-lug measurement may be tight on smaller wrists, with the included leather strap also noted as potentially unsuitable. Overall, owners rate the Phoibos Eagle Ray GMT highly for its attractive finishing and movement at the price.

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