Serica Ref. 5303 Diving ChronometervsChristopher Ward C60 Trident Reef

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Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Ref. 5303 Diving Chronometer

C60 Trident Reef
Diameter
39mm
41mm
Lug-to-Lug
46.5mm
lowest
47.9mm
Thickness
12.2mm
11.4mm
lowest
Water Resistance
300m
highest
200m
Power Reserve
42h
highest
38h
MSRP
$1,768
$995
lowest
Movement
Soprod M100
Sellita SW200-1
Case
5 specsCrystal & Dial
3 specsMovement
5 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Serica Ref. 5303 Diving Chronometer for its excellent wearability, unique style, and smooth, confident bezel action with a useful dual scale. The winding, hacking, and crown action are reported to be working perfectly, and timekeeping is consistently good, with one owner noting it kept good time over eight months. Some owners find the crown to be comically large, though this is a minority view. Overall, owners rate the Serica Ref. 5303 Diving Chronometer highly for its wearability and distinctive design.
The Christopher Ward C60 Trident Reef is widely praised for its vibrant, multi-layered dials and fun, affordable design, with owners appreciating its value and unique aesthetic. Reviewers note the 41mm case size is well-proportioned and wears comfortably due to curved lugs, and the FKM rubber strap is considered comfortable. Some owners desire a fully lumed bezel, and a minority dislike the Bader bracelet. On balance, owners and reviewers rate the Christopher Ward C60 Trident Reef highly for its distinctive design and strong value proposition.
The dial's vibrant color and unique texture are strong points. The bezel's grip and functionality are a shared weakness. Reviewers disagreed on the watch's value proposition relative to Seiko divers.
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