Side by side

Sinn 556 I WTvsYema Navygraf Heritage

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

Some links are affiliate links — lug2lug may earn a commission at no extra cost to you. Disclosures

Some links are affiliate links — lug2lug may earn a commission at no extra cost to you. Disclosures

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.

Yema Navygraf Heritage

Owners widely praise the Yema Navygraf Heritage for its comfortable 39mm wearability and faithful 1970s reissue design, noting craftsmanship better than expected. Some owners report quality control issues including bezel free play and misalignment, while others find the bezel very tight to turn despite precise 120 clicks. The in-house MBP2000 movement is noted by some to be loud and run approximately +10 to +15 seconds per day. On balance, owners appreciate the Yema Navygraf Heritage for its retro aesthetic and comfortable sizing, with noted concerns around movement accuracy and bezel action.

From video reviewers

The 39mm case size and comfortable wearability are consistently praised. The in-house MBP1000 movement is mentioned as a strength by multiple reviewers. Reviewers disagree on the movement's quality, with one suggesting it should not have passed quality control while others highlight it as a positive feature.

At a glance

18 of 29 specs differ
Diameter
556 I WT38.5mm
Navygraf Heritage39mm
Power Reserve
556 I WT38h
Navygraf Heritage
Water Resistance
556 I WT200m
Navygraf Heritage100m
MSRP
556 I WT$2,106
Navygraf Heritage$990

Full specifications

Case

9 specs
Category
Tool
Diver
Diameter
38.5mm
39mm
Thickness
11mm
10.85mm
Lug-to-Lug
46mm
Lug Width
20mm
19mm
Material
Stainless Steel
316L Stainless Steel
Finish
satinized
Water Resistance
200m
100m
Caseback

Crystal & Dial

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

Movement

3 specs
Beat Rate
28,800 vph
0 vph
Power Reserve
38h
0h
Jewels
26
0

Pricing

1 specs
MSRP
$2,106
$990
Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Follow this matchup

Get a note when Sinn 556 I WT vs Yema Navygraf Heritage gets more votes, a community discussion, or a price drop. No account needed.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.