Addiesdive Tuna 300M Automatic Dive Watch AD2509vsChristopher 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.

Tuna 300M Automatic Dive Watch AD2509

C60 Trident Reef
Diameter
41mm
41mm
Lug-to-Lug
44.5mm
lowest
47.9mm
Thickness
15mm
11.4mm
lowest
Water Resistance
300m
highest
200m
Power Reserve
n/a
38h
MSRP
$139
lowest
$995
Movement
Seiko NH35
Sellita SW200-1
Case
3 specsCrystal & Dial
2 specsMovement
4 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Addiesdive Tuna 300M Automatic Dive Watch AD2509 for its excellent value, with many finding the case finishing comparable to higher-priced brands and appreciating the sapphire crystal and strong lume. The Seiko NH35 movement is generally considered reliable and keeps good time, with some owners reporting accuracy within +1/+2 seconds per day, while others note figures around -6 seconds per day. The watch is seen as a competent homage, featuring a ceramic bezel insert and solid link bracelet. One owner noted the 39mm case size as easy to wear on a 7-inch wrist. However, some owners express skepticism regarding the actual water resistance beyond casual use, despite the 300m rating, and question the warranty's reliability. The bracelet is frequently described as significantly worse than that found on comparable brands, though still visually appealing. Quality control variance is a concern for some, with instances of misaligned bezel inserts reported.
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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