Side by side

Spinnaker Dumas AutomaticvsSinn U2 S (EZM 5)

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.

Spinnaker Dumas Automatic

Owners widely praise the Spinnaker Dumas Automatic for its attractive textured blue dial, applied indices, and well-finished case, noting its comfortable wearability due to a short lug-to-lug distance. Some owners flag the use of mineral crystal instead of sapphire and a bracelet with a learning curve and loose keeper. Overall, owners rate the Spinnaker Dumas Automatic highly for its aesthetics and case finishing at its price point.

Sinn U2 S (EZM 5)

The Sinn U2 S (EZM 5) features good, solid lume that remains readable throughout the night, though some owners find its initial brightness less intense than other dive watches. Reviewers highlight its excellent legibility due to a high-contrast dial and large hands, housed in robust German submarine steel with a scratch-resistant Tegiment-treated bezel. On balance, owners and reviewers appreciate the Sinn U2 S (EZM 5) for its robust construction and clear dial legibility.

At a glance

17 of 29 specs differ
Diameter
Dumas Automatic44mm
U2 S (EZM 5)44mm
Power Reserve
Dumas Automatic
U2 S (EZM 5)48h
Water Resistance
Dumas Automatic300m
U2 S (EZM 5)2,000m
MSRP
Dumas Automatic$239
U2 S (EZM 5)$3,802

Full specifications

Case

6 specs
Thickness
15mm
15.5mm
Lug-to-Lug
48mm
Material
316L Stainless Steel
Stainless Steel
Finish
black
Water Resistance
300m
2000m
Caseback

Crystal & Dial

5 specs
Crystal Shape
AR Coating
Underside
Dial Color
Blue
Black
Indices
Lume
None
Luminescent

Movement

5 specs
Caliber
NH35
SW 330-2
Beat Rate
0 vph
28,800 vph
Power Reserve
0h
48h
Jewels
0
25
Complications
None
GMT, Date

Pricing

1 specs
MSRP
$239
$3,802
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