Side by side

Islander Islander Northport 37mm Automatic Watch with Purple Ripple Dial #ISL-291vsSeiko Prospex Sea

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

Islander Northport 37mm Automatic Watch with Purple Ripple Dial #ISL-291
IslanderIslander Northport 37mm Automatic Watch with Purple Ripple Dial #ISL-291
MSRP $499
Prospex Sea
SeikoProspex Sea
MSRP $900

At a glance

15 of 29 specs differ
Diameter
Islander Northport 37mm Automatic Watch with Purple Ripple Dial #ISL-29137mm
Prospex Sea41mm
Power Reserve
Islander Northport 37mm Automatic Watch with Purple Ripple Dial #ISL-291
Prospex Sea70h
Water Resistance
Islander Northport 37mm Automatic Watch with Purple Ripple Dial #ISL-291200m
Prospex Sea200m
MSRP
Islander Northport 37mm Automatic Watch with Purple Ripple Dial #ISL-291$499
Prospex Sea$900

Full specifications

Case

5 specs
Diameter
37mm
41mm
Thickness
11.7mm
12.3mm
Lug-to-Lug
0mm
46.9mm
Finish
Brushed and polished
Caseback
Screw-down
Solid

Crystal & Dial

5 specs
Crystal Shape
Flat
Curved
AR Coating
Underside
Anti-reflective coating on inner surface
Dial Color
Black
Indices
Applied
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

4 specs
Caliber
Miyota 90S5
6R35
Beat Rate
0 vph
28,800 vph
Power Reserve
0h
70h
Jewels
0
24

Pricing

1 specs
MSRP
$499
$900

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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.

Islander Northport 37mm Automatic Watch with Purple Ripple Dial #ISL-291

The Islander Northport 37mm Automatic Watch with Purple Ripple Dial #ISL-291 is widely praised for its looks, build quality, and impressive specifications, including a high-beat Miyota 9015 movement with hacking and hand-winding, sapphire crystal, and 200m water resistance. Owners consider it excellent value, citing the finishing and comfortable fit. One owner notes the bright lume is fleeting. The watch is powered by a Miyota 9015 movement with a 40-hour power reserve. Overall, owners and reviewers rate the Islander Northport 37mm Automatic Watch with Purple Ripple Dial #ISL-291 highly for its exceptional value and robust specifications at its price point.

Seiko Prospex Sea

Owners widely praise the Seiko Prospex Sea for its excellent lume, robust build, and value, with many highlighting the comfortable 4 o'clock crown and reliable movements. Reviewers note impressive case finishing and attractive dials, with specific models lauded for their gradient blue designs and smooth bezel actions. Accuracy figures vary, with one owner reporting +9 seconds/day after demagnetization, while others find the watches to be good first "proper" watches. Some owners find the stock rubber straps uncomfortable or the overall size substantial on smaller wrists. On balance, owners and reviewers rate the Seiko Prospex Sea highly for its combination of strong dive watch functionality and appealing design at its price point.

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