Side by side

Serica Ref. 5303 Diving ChronometervsCitizen Tsuyosa Automatic

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
Tsuyosa Automatic
CitizenTsuyosa Automatic
MSRP $356

At a glance

12 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
Tsuyosa Automatic40mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Tsuyosa Automatic42h
Water Resistance
Ref. 5303 Diving Chronometer300m
Tsuyosa Automatic50m
MSRP
Ref. 5303 Diving Chronometer$1,768
Tsuyosa Automatic$356

Full specifications

Case

6 specs
Category
Diver
Sport
Diameter
39mm
40mm
Thickness
12.2mm
12mm
Lug-to-Lug
46.5mm
46mm
Lug Width
20mm
9.1mm
Water Resistance
300m
50m

Crystal & Dial

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

Movement

2 specs
Caliber
M100 COSC
8210
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$356

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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 Tsuyosa Automatic

The Citizen Tsuyosa Automatic is widely praised for its exceptional value, with reviewers and owners alike highlighting its Japanese construction quality and impressive fit and finish for the price. Enthusiasts appreciate its versatile design and fun dial colors, while reviewers note its retro feel and emulation of vintage dress watches. The watch is powered by Citizen's caliber 8322 movement, offering a 60-hour power reserve. Criticisms include a cyclops date magnifier that some find undesirable, a bracelet that can be noisy and lacks significant tapering, and a 40mm case that wears large due to its thickness and broad lugs. One owner also found the 4 o'clock crown fiddly for winding. Overall, owners and reviewers rate the Citizen Tsuyosa Automatic highly for its incredible bargain price and well-executed design.

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