Aquastar Benthos 500 IIvsChristopher 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.

Benthos 500 II

C60 Trident Reef
Diameter
42mm
41mm
Lug-to-Lug
47mm
lowest
47.9mm
Thickness
15.4mm
11.4mm
lowest
Water Resistance
200m
200m
Power Reserve
60h
highest
38h
MSRP
$3,590
$995
lowest
Movement
Aquastar 1MPS
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.
The Aquastar Benthos 500 II is widely praised for its wearability, with reviewers and owners noting its comfortable 42mm case and improved ergonomics over the original, making it easy to wear even on smaller wrists. Its unique monopusher chronograph function, operated by a 2 o'clock pusher, is highlighted as exceptionally useful for everyday timing and racing. The watch features a bespoke automatic Aquastar 1MPS movement and is noted for its quality finishing and attractive price for its heritage and unique complications. However, some sources point out that the "500" in the name is misleading given its 200m water resistance, and the stamped clasp on the beads-of-rice bracelet is considered a drawback at its price point. One owner also noted the difficulty in sourcing replacement parts for older models. Overall, owners and reviewers rate the Aquastar Benthos 500 II highly for its blend of vintage charm, modern wearability, and unique monopusher chronograph functionality.
The custom caliber movement is a significant strength. Reviewers did not reach a consensus on any weaknesses.
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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