Side by side

Serica Ref. 5303 Diving ChronometervsCitizen Brycen

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
Brycen
CitizenBrycen
MSRP $394

At a glance

13 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
Brycen42mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Brycen40h
Water Resistance
Ref. 5303 Diving Chronometer300m
Brycen100m
MSRP
Ref. 5303 Diving Chronometer$1,768
Brycen$394

Full specifications

Case

5 specs
Diameter
39mm
42mm
Thickness
12.2mm
12mm
Lug-to-Lug
46.5mm
46mm
Lug Width
20mm
22mm
Water Resistance
300m
100m

Crystal & Dial

3 specs
AR Coating
Yes
Inner
Dial Color
Enamel Black
Black
Lume
Super-LumiNova
None

Movement

4 specs
Caliber
M100 COSC
J810
Type
Automatic
Solar
Power Reserve
42h
40h
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$394

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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.

Citizen Brycen

The Citizen Brycen is praised for its excellent accuracy, with one owner reporting less than 1 second deviation per day, and its retro racing chronograph aesthetic featuring oversized pushers and a detailed crown. Reviewers note its barrel-shaped Super Titanium case with polished bevels and brushed surfaces, a flat sapphire crystal, and a vertically oriented two-register chronograph dial. Owners widely report the mesh bracelet pulls hairs, necessitating a strap change. The static bezel, 100m water resistance, and the date window's poor color contrast making it difficult to read are flagged as drawbacks. On balance, owners and reviewers appreciate the Citizen Brycen's aesthetic and accuracy, though the bracelet comfort and date legibility present notable trade-offs.

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