Audaz Reef DivervsSeiko Prospex Sea
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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
Prospex Sea
Diameter
45mm
43.5mm
Lug-to-Lug
53mm
51mm
lowest
Thickness
15.5mm
13.3mm
lowest
Water Resistance
300m
highest
200m
Power Reserve
n/a
70h
MSRP
$420
lowest
$1,500
Movement
Seiko NH35
Seiko 6R35
Case
6 specsCrystal & Dial
3 specsMovement
3 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.
Owners praise the Seiko Prospex Sea for its value and classic design, with reviewers highlighting its impressive case finishing and excellent LumiBrite lume. One owner found the watch to be a great first proper timepiece, while another noted it felt uncomfortably large, thick, and heavy on a 6.5-inch wrist. The hard-coated steel case offers scratch resistance. On balance, owners and reviewers rate the Seiko Prospex Sea highly for its value and finishing.
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