Side by side

Serica Ref. 5303 Diving ChronometervsIslander Islander Northport 37mm Automatic Watch with Purple Ripple Dial #ISL-291

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

Ref. 5303 Diving Chronometer
SericaRef. 5303 Diving Chronometer
MSRP $1,768
Islander Northport 37mm Automatic Watch with Purple Ripple Dial #ISL-291
IslanderIslander Northport 37mm Automatic Watch with Purple Ripple Dial #ISL-291
MSRP $499

At a glance

16 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
Islander Northport 37mm Automatic Watch with Purple Ripple Dial #ISL-29137mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Islander Northport 37mm Automatic Watch with Purple Ripple Dial #ISL-291
Water Resistance
Ref. 5303 Diving Chronometer300m
Islander Northport 37mm Automatic Watch with Purple Ripple Dial #ISL-291200m
MSRP
Ref. 5303 Diving Chronometer$1,768
Islander Northport 37mm Automatic Watch with Purple Ripple Dial #ISL-291$499

Full specifications

Case

6 specs
Diameter
39mm
37mm
Thickness
12.2mm
11.7mm
Lug-to-Lug
46.5mm
0mm
Finish
Brushed and polished
Water Resistance
300m
200m
Caseback
Solid
Screw-down

Crystal & Dial

4 specs
AR Coating
Yes
Underside
Dial Color
Enamel Black
Indices
Applied
Lume
Super-LumiNova
None

Movement

5 specs
Caliber
M100 COSC
Miyota 90S5
Beat Rate
28,800 vph
0 vph
Power Reserve
42h
0h
Jewels
25
0
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$499

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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.

Serica Ref. 5303 Diving Chronometer

Owners widely praise the Serica Ref. 5303 Diving Chronometer for its excellent wearability, definitive style, and smooth, confident bezel action. The dual scale on the bezel is noted as surprisingly useful, and the crown action, winding, and hacking are reported to work perfectly. One owner describes the Serica 5303-3 as gorgeous and unique, though another notes the crown can appear comically large. On balance, owners rate the Serica Ref. 5303 Diving Chronometer highly for its blend of unique design and robust functionality.

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.

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