Audaz Reef DivervsSpinnaker Hull Diver
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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.

Reef Diver

Hull Diver
Diameter
45mm
42mm
Lug-to-Lug
53mm
47.5mm
lowest
Thickness
15.5mm
15mm
lowest
Water Resistance
300m
300m
MSRP
$420
$375
lowest
Movement
Seiko NH35
Seiko NH35
Case
5 specsCrystal & Dial
2 specsMovement
1 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The Audaz Reef Diver is a bold, rugged tool watch with a focus on clarity and accuracy for diving. It features a 45mm 316L stainless steel case, sapphire crystal, Super-LumiNova C3, and 300m water resistance. One owner notes it is a large, heavy watch. The Audaz Reef Diver is available with a Seiko NH35 automatic movement starting at $269. On balance, owners and reviewers view the Audaz Reef Diver positively for its dependable tool-watch design and robust specifications at its price point.
The Spinnaker Hull Diver is widely praised for its excellent build quality, with owners highlighting the milled clasp, solid links, and dual-part case construction that contributes to a reduced thickness. Reviewers and owners alike commend its great finishing, accurate Seiko NH35 movement, and the value it offers at its price point, with one owner calling it one of their best affordable watches. The blue dial is noted for its attractive play of light, and the sapphire crystal features a strong anti-reflective coating. However, the lume is considered average by some, and a few owners expressed a desire for a higher beat movement. The screwdown crown is easy to operate, and micro-adjustment on the bracelet allows for a good fit. On balance, owners rate the Spinnaker Hull Diver highly for its exceptional build quality and finishing at an affordable price.
The cushion case design and solid construction are praised. The bracelet is noted as solid stainless steel.
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