Side by side

Sinn 556 I WTvsWren Diver One Aqua

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

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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 556 I WT

The Sinn 556 I WT is seen as a good value, though some owners find its stark black dial and white markers visually flat compared to more textured dials. While its minimalist design, screw-down crown, and water resistance are praised, some find the two-dimensional dial lacks visual substance. Overall, owners rate the Sinn 556 I WT well for its value and solid specifications, despite some finding its austere dial design polarizing.

Wren Diver One Aqua

The sandwich dial with box crystal delivers a distinct vintage aesthetic that stands out at the price point. The flat-link bracelet completes the classic diver design. Reviewers noted the bezel action as a notable comparison point against competitors.

At a glance

16 of 29 specs differ
Diameter
556 I WT38.5mm
Diver One Aqua41mm
Power Reserve
556 I WT38h
Diver One Aqua38h
Water Resistance
556 I WT200m
Diver One Aqua200m
MSRP
556 I WT$2,106
Diver One Aqua$965

Full specifications

Case

8 specs
Category
Tool
Diameter
38.5mm
41mm
Thickness
11mm
13.3mm
Lug-to-Lug
47mm
Lug Width
20mm
0mm
Material
Stainless Steel
PVD coated retaining steel color for scratch resistant
Finish
satinized
Caseback

Crystal & Dial

5 specs
Crystal Shape
AR Coating
Underside
Dial Color
Red
Indices
Applied
Lume
Luminescent
None

Movement

2 specs
Beat Rate
28,800 vph
0 vph
Jewels
26
0

Pricing

1 specs
MSRP
$2,106
$965
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