Side by side

Sinn 105 St Sa UTCvsIslander Islander Red October V2 Dive Watch with Radiant Blue Dial #ISL-323

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

105 St Sa UTC
Sinn105 St Sa UTC
MSRP $1,998
Islander Red October V2 Dive Watch with Radiant Blue Dial #ISL-323
IslanderIslander Red October V2 Dive Watch with Radiant Blue Dial #ISL-323
MSRP $449

At a glance

17 of 29 specs differ
Diameter
105 St Sa UTC41mm
Islander Red October V2 Dive Watch with Radiant Blue Dial #ISL-32342mm
Power Reserve
105 St Sa UTC38h
Islander Red October V2 Dive Watch with Radiant Blue Dial #ISL-323
Water Resistance
105 St Sa UTC200m
Islander Red October V2 Dive Watch with Radiant Blue Dial #ISL-323200m
MSRP
105 St Sa UTC$1,998
Islander Red October V2 Dive Watch with Radiant Blue Dial #ISL-323$449

Full specifications

Case

7 specs
Category
Tool
Diver
Diameter
41mm
42mm
Thickness
11.9mm
14mm
Lug-to-Lug
0mm
Lug Width
20mm
22mm
Finish
bead-blasted
Caseback
Screw-down

Crystal & Dial

4 specs
Crystal Shape
Domed
Dial Color
Black
Indices
Lume
Luminescent
None

Movement

5 specs
Caliber
SW 330-2
Seiko NH38
Beat Rate
28,800 vph
0 vph
Power Reserve
38h
0h
Jewels
25
0
Complications
Date, GMT
None

Pricing

1 specs
MSRP
$1,998
$449

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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.

Sinn 105 St Sa UTC

Owners and reviewers widely praise the Sinn 105 St Sa UTC for its legible dial, precise bi-directional bezel action, and the technical, toolish aesthetic of its bead-blasted, TEGIMENT-hardened steel case. The watch is noted for its smooth sweep and snappy date change, with accuracy often within COSC standards, and its vertical day/date display with a German day wheel is a distinctive feature. Some owners find the lug-to-lug distance large for smaller wrists, and the bracelet clasp is considered a weakness by one source, while the non-lumed UTC hand is a deliberate design choice. The Sinn 105 St Sa UTC utilizes a Sellita SW330-1 automatic movement with a 42-hour power reserve and offers 200 meters of water resistance. Overall, the consensus is that owners and reviewers rate the Sinn 105 St Sa UTC highly for its robust build quality and functional tool watch design at its price point.

Islander Red October V2 Dive Watch with Radiant Blue Dial #ISL-323

Owners widely praise the Islander Red October V2 Dive Watch with Radiant Blue Dial #ISL-323 for its stunning radiant blue dial and red seconds hand, with some noting its resemblance to a luxury model. The watch is frequently cited as offering excellent value for its price. Some owners express a dislike for the circle/triangle logo, while others appreciate the availability of both 38mm and 43mm size options. Overall, owners rate the Islander Red October V2 Dive Watch with Radiant Blue Dial #ISL-323 highly for its aesthetic appeal and value proposition.

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