Side by side

Serica Ref. 5303 Diving ChronometervsChristopher Ward C60 Trident Pro 300

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
C60 Trident Pro 300
Christopher WardC60 Trident Pro 300
MSRP $1,095

At a glance

13 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
C60 Trident Pro 30040mm
Power Reserve
Ref. 5303 Diving Chronometer42h
C60 Trident Pro 30038h
Water Resistance
Ref. 5303 Diving Chronometer300m
C60 Trident Pro 300300m
MSRP
Ref. 5303 Diving Chronometer$1,768
C60 Trident Pro 300$1,095

Full specifications

Case

4 specs
Diameter
39mm
40mm
Thickness
12.2mm
11.3mm
Lug-to-Lug
46.5mm
47.45mm
Caseback
Solid
Display

Crystal & Dial

3 specs
AR Coating
Yes
Inner
Dial Color
Enamel Black
Black
Lume
Super-LumiNova
SLN X1 BL C1

Movement

5 specs
Caliber
M100 COSC
SW200-1
Beat Rate
28,800 vph
4 vph
Power Reserve
42h
38h
Jewels
25
26
Complications
COSC
Day-date, Date

Pricing

1 specs
MSRP
$1,768
$1,095

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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.

Christopher Ward C60 Trident Pro 300

Owners widely praise the Christopher Ward C60 Trident Pro 300 for its top-notch case finishing, buttery bracelet with on-the-fly micro-adjust, and awesome lume. Reviewers and owners alike highlight the dial's excellent finishing and applied indexes, the premium feel of the 120-click bezel with minimal backplay, and the smooth crown operation. The bracelet articulates smoothly with tight tolerances, and the quick-release system is durable. Some owners note the Sellita SW200-1 movement's 38-hour power reserve as a minor criticism, and one owner points out that the "30" on the bezel may not perfectly align. Overall, owners and reviewers rate the Christopher Ward C60 Trident Pro 300 highly for its exceptional finishing and comfortable bracelet at the price point.

From video reviewers

The watch's improved proportions and balanced design are praised. The bezel action is noted as smooth and precise. Reviewers disagree on the value proposition, with one seeing it as a benchmark for quality at its price, while another considers it expensive compared to mainstream Swiss divers.

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