Side by side

Spinnaker Spence 300vsSinn U50 SDR with TEGIMENT option

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

What people say

Owners + reviewers, side by side

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

Spinnaker Spence 300

The Spinnaker Spence 300 is widely praised for its slim 10.9mm case and 40mm diameter, offering a comfortable and uncommon thin diver design at its price point. Reviewers and owners highlight its value, especially below $350, and its blend of retro design with modern specifications, including a 300m depth rating and a fully indexed bezel. Some owners, however, find the dial printing and bracelet finishing to be less refined, with one noting the bracelet's male end links as a drawback. The consensus is that the Spinnaker Spence 300 is highly regarded for its exceptional value and wearable dimensions, making it a strong contender for an everyday sports watch.

From video reviewers

The watch's thin 10.9mm profile for a 300m diver is a key strength. No shared weakness was identified.

Sinn U50 SDR with TEGIMENT option

The Sinn U50 SDR with TEGIMENT option is widely praised for its robust submarine steel construction, impressive 50bar water resistance, and excellent anti-reflective coating. Owners and reviewers highlight its toolish, legible dial, satisfyingly tactile bezel, and the outstanding scratch resistance provided by the TEGIMENT hardening. Some owners note the lume is underwhelming, and a few find the clasp aesthetically large and chunky despite its functional diver's extension. Overall, owners and reviewers rate the Sinn U50 SDR with TEGIMENT option highly for its exceptional build quality and scratch resistance at its price point.

At a glance

18 of 29 specs differ
Diameter
Spence 30040mm
U50 SDR with TEGIMENT option41mm
Power Reserve
Spence 300
U50 SDR with TEGIMENT option38h
Water Resistance
Spence 300300m
U50 SDR with TEGIMENT option500m
MSRP
Spence 300$650
U50 SDR with TEGIMENT option$3,326

Full specifications

Case

7 specs
Diameter
40mm
41mm
Thickness
11.5mm
11.2mm
Lug-to-Lug
48mm
Material
316L Stainless Steel
Stainless Steel
Finish
bead-blasted
Water Resistance
300m
500m
Caseback

Crystal & Dial

5 specs
Crystal Shape
AR Coating
Underside
Dial Color
Aquamarine
Black
Indices
Lume
None
Luminescent

Movement

5 specs
Caliber
NH35
Sellita SW300-1
Beat Rate
0 vph
28,800 vph
Power Reserve
0h
38h
Jewels
0
25
Complications
None
Date

Pricing

1 specs
MSRP
$650
$3,326
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