Side by side

Sinn U18vsZelos Swordfish Field 38

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

U18
SinnU18
MSRP $3,488
Swordfish Field 38
ZelosSwordfish Field 38
MSRP $399
What people say

Owners + reviewers, side by side

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

Sinn U18

The Sinn U18 is praised for its unique deep blue/green dial with three-dimensional oxygen bubbles that change with light, and its comfortable, easily adjustable bracelet. Owners find the watch stunning and a piece of history, appreciating the refined hands. The Sinn U18 features a 44mm, 15.5mm thick case made from German submarine steel, offering a 2000-meter dive specification and Sinn's Ar-Dehumidifying technology, powered by a Sellita SW300-1 movement. The case thickness is apparent, and the watch comes as a complete set with box and papers for $3,000-$3,680. On balance, owners and reviewers rate the Sinn U18 highly for its striking dial and robust build.

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.

At a glance

16 of 29 specs differ
Diameter
U1844mm
Swordfish Field 3838mm
Power Reserve
U1842h
Swordfish Field 3840h
Water Resistance
U182,000m
Swordfish Field 38200m
MSRP
U18$3,488
Swordfish Field 38$399

Full specifications

Case

9 specs
Category
Diver
Field
Diameter
44mm
38mm
Thickness
15.5mm
12mm
Lug-to-Lug
38mm
Lug Width
22mm
20mm
Material
high-strength
316L Stainless Steel
Finish
Brushed and polished
Water Resistance
2000m
200m
Caseback
Solid

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Black
Bronze
Indices
Applied

Movement

2 specs
Caliber
SW300-1
Seiko NH35
Power Reserve
42h
40h

Pricing

1 specs
MSRP
$3,488
$399
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