Seiko SRP779vsSpinnaker Dumas Automatic

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Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Seiko SRP779 at true scale

SRP779

Spinnaker Dumas Automatic at true scale

Dumas Automatic

Diameter

45mm

44mm

Lug-to-Lug

n/a

48mm

Thickness

13.4mm

lowest

15mm

Water Resistance

200m

300m

highest

Power Reserve

41h

n/a

MSRP

n/a

$239

Movement

Seiko 4R36

Seiko NH35

Case

6 specs
Diameter
45mm
44mm
Thickness
13.4mm
15mm
Lug-to-Lug
n/a
48mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
200m
300m
Caseback
Solid
n/a

Crystal & Dial

2 specs
Crystal
Hardlex
Sapphire
Dial Color
Black
Blue

Movement

5 specs
Caliber
Seiko 4R36
Seiko NH35
Power Reserve
41h
0h
Jewels
24
0
Hacking
Yes
No
Hand-winding
Yes
No

Pricing

1 specs
MSRP
n/a
$239
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Reviews

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

Seiko SRP779

Owners widely praise the Seiko SRP779 for its value, robust build, and comfortable wearability, with many citing its hacking and hand-winding 4R36 movement as a significant upgrade. Reviewers and owners alike highlight its strong lume, smooth bezel action, and the comfort of its silicone strap, which is considered an improvement over previous offerings. One owner notes exceptional accuracy at -1.5 seconds per day. The SRP779 is seen as a faithful recreation of a classic diver, offering excellent historical ties and versatility for daily wear. On balance, owners and reviewers rate the Seiko SRP779 highly for its exceptional value and reliable performance as a robust automatic diver.

Spinnaker Dumas Automatic

Owners widely praise the Spinnaker Dumas Automatic for its robust build quality, attractive textured blue dial, and excellent finishing for its price point. The watch is noted for its comfortable wearability, attributed to a short lug-to-lug distance, and owners report positive experiences with the Seiko NH35 movement. Some owners mention a mineral crystal instead of sapphire, a bracelet with a learning curve, and a crown that feels slightly small. Overall, owners rate the Spinnaker Dumas Automatic highly for its aesthetic appeal and solid construction at a fair price.