Side by side

Spinnaker Dumas AutomaticvsZenith Defy Revival A3643

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

Dumas Automatic
SpinnakerDumas Automatic
MSRP $239
Defy Revival A3643
ZenithDefy Revival A3643
MSRP $7,800
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.

Zenith Defy Revival A3643

The Zenith Defy Revival A3643 is widely praised for its faithful reinterpretation of the 1969 original, with reviewers consistently singling out the crisp silver sunburst dial, sculptural faceted case geometry, and exceptional wearability—the 37mm size and 13.5mm thickness allow it to sit comfortably under dress cuffs without feeling top-heavy or encumbered. Owners and reviewers celebrate its unexpected versatility as a chic dive watch despite its refined aesthetic, and the ladder bracelet, though divisive in design authenticity, is noted by some as comfortable and solid with substantial taper. The dial reads more subdued in person than in photographs, and one owner felt the narrow bracelet and overall proportions wore very small; the clasp lacks micro-adjustment capability found on modern dive watches. Overall, the Zenith Defy Revival A3643 is rated highly for its restrained, historically accurate design and refined everyday wearability at a price point of $7,800.

At a glance

17 of 29 specs differ
Diameter
Dumas Automatic44mm
Defy Revival A364337mm
Power Reserve
Dumas Automatic40h
Defy Revival A364350h
Water Resistance
Dumas Automatic300m
Defy Revival A3643300m
MSRP
Dumas Automatic$239
Defy Revival A3643$7,800

Full specifications

Case

7 specs
Diameter
44mm
37mm
Thickness
15mm
Lug-to-Lug
48mm
Lug Width
22mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed and polished
Stainless steel
Caseback
Solid

Crystal & Dial

5 specs
Crystal
Sapphire
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Blue
Silver
Indices
Applied

Movement

4 specs
Caliber
Seiko NH35
Type
Automatic
Power Reserve
40h
50h
Jewels
25
0

Pricing

1 specs
MSRP
$239
$7,800
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