Side by side

Spinnaker Dumas AutomaticvsSeiko Diamond Collection

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

Dumas Automatic
SpinnakerDumas Automatic
MSRP $239
Diamond Collection
SeikoDiamond Collection
MSRP $525

At a glance

11 of 29 specs differ
Diameter
Dumas Automatic44mm
Diamond Collection30mm
Power Reserve
Dumas Automatic40h
Diamond Collection40h
Water Resistance
Dumas Automatic300m
Diamond Collection50m
MSRP
Dumas Automatic$239
Diamond Collection$525

Full specifications

Case

7 specs
Category
Diver
Dress
Diameter
44mm
30mm
Thickness
15mm
6.3mm
Lug-to-Lug
48mm
36.5mm
Lug Width
22mm
5mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
300m
50m

Crystal & Dial

1 specs
Dial Color
Blue
Black

Movement

2 specs
Caliber
SII NH35A
7N01
Type
Automatic
Quartz

Pricing

1 specs
MSRP
$239
$525

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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.

Seiko Diamond Collection

The Seiko Diamond Collection is widely praised by owners for its stunning beauty, featuring 14 diamonds, a mother-of-pearl dial, and a two-tone color scheme. Reviewers note its dial is difficult to capture in photos and that its fit and finish suggest excellent value, especially when purchased on sale. One owner describes the gold plating on the bracelet showing some fading from desk work, and its gold tone may not suit all tastes. Overall, owners rate the Seiko Diamond Collection highly for its striking aesthetics and perceived value.

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