Side by side

Seiko MonstervsZelos Swordfish Field 38

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

Add a watch

Some links are affiliate links — lug2lug may earn a commission at no extra cost to you. Disclosures

What people say

Owners + reviewers, side by side

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

Seiko Monster

Owners widely praise the Seiko Prospex Sea for its excellent value, robust build, and superb lume, with many noting its comfortable wearability. Reviewers consistently highlight its impressive finishing and classic dive watch design, often comparing it favorably to older models. Some owners find the size substantial, with one noting it as big, thick, and heavy on a 6.5-inch wrist, while others find it perfect. On balance, owners and reviewers rate the Seiko Prospex Sea highly for its exceptional value and robust, classic dive watch design.

Zelos Swordfish Field 38

Owners widely praise the Zelos Swordfish Field 38 for its comfortable dimensions, noting they are acceptable both on paper and in practice. The Seiko NH35 movement is highlighted for its exceptionally smooth winding feel. On balance, owners rate the Zelos Swordfish Field 38 highly for its value and comfortable wearability.

From video reviewers

The dial's striking visual element is a consistent highlight. The lume is also praised. Reviewers did not agree on any weaknesses.

At a glance

12 of 29 specs differ
Diameter
Monster42.4mm
Swordfish Field 3838mm
Power Reserve
Monster41h
Swordfish Field 38
Water Resistance
Monster200m
Swordfish Field 38200m
MSRP
Monster$550
Swordfish Field 38$399

Full specifications

Case

5 specs
Category
Diver
Field
Diameter
42.4mm
38mm
Thickness
13.4mm
12mm
Lug-to-Lug
49.4mm
38mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

3 specs
Crystal
Hardlex
Sapphire
Dial Color
Bronze
Lume
LumiBrite on hands, index(es) and bezel
None

Movement

3 specs
Caliber
Seiko 4R36
Seiko NH35
Power Reserve
41h
0h
Jewels
24
0

Pricing

1 specs
MSRP
$550
$399
Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

DiscussionNot started
Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.