Side by side

Audaz Reef DivervsSeiko 5 Sports Field series

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Audaz Reef Diver

The Audaz Reef Diver is described as a bold, rugged, and dependable 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 powered by a Seiko NH35 automatic movement and is priced starting at $269. Overall, owners and reviewers view the Audaz Reef Diver positively as a robust tool watch with a clear dial and strong water resistance for its price.

Seiko 5 Sports Field series

The Seiko 5 Sports Field series offers an accessible explorer-style watch with a 41mm stainless steel case, 100m water resistance, and a Hardlex crystal. The Field GMT model features a caller GMT complication powered by the 4R34 movement, while the standard Field models use the 4R36 with a 41-hour power reserve. Both models include Arabic numerals coated in LumiBrite and a lumed pearl on the bezel. On balance, the Seiko 5 Sports Field GMT is a well-regarded entry-level explorer watch for its price point, despite its office-style GMT function.

From video reviewers

The prominent five-sided GMT hand enhances legibility and adds a sophisticated aesthetic to the watch. The Seiko 5 Sports Field series offers similar functionality to the Explorer 2 at a lower price, making it a valuable option. Reviewers disagree on whether it's a missed opportunity for Seiko to release this model first, with one reviewer implying it would have been a more logical addition to their lineup.

At a glance

14 of 29 specs differ
Diameter
Reef Diver45mm
5 Sports Field series39.4mm
Power Reserve
Reef Diver
5 Sports Field series41h
Water Resistance
Reef Diver300m
5 Sports Field series100m
MSRP
Reef Diver$420
5 Sports Field series$450

Full specifications

Case

6 specs
Category
GMT
Diameter
45mm
39.4mm
Thickness
15.5mm
13.6mm
Lug-to-Lug
53mm
47.9mm
Lug Width
24mm
20mm
Water Resistance
300m
100m

Crystal & Dial

4 specs
Crystal
Sapphire
Hardlex
Crystal Shape
Curved
Dial Color
Camouflage
Lume
SuperLuminova
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
Seiko NH35
4R34
Power Reserve
41h
Jewels
0
24

Pricing

1 specs
MSRP
$420
$450
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