Marnaut Safe Harbour 100CvsSheffield Superproduction

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Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Marnaut Safe Harbour 100C at true scale

Safe Harbour 100C

Sheffield Superproduction at true scale

Superproduction

Diameter

39mm

40mm

Lug-to-Lug

45mm

lowest

48mm

Thickness

13mm

12.6mm

lowest

Water Resistance

100m

200m

highest

Power Reserve

41h

highest

38h

MSRP

$899

n/a

Movement

Sellita SW200-1

Sellita SW200-1

Case

4 specs
Diameter
39mm
40mm
Thickness
13mm
12.55mm
Lug-to-Lug
45mm
48mm
Water Resistance
100m
200m

Crystal & Dial

2 specs
Dial Color
Black
Blue Graphite
Lume
None
Swiss Lume

Movement

1 specs
Power Reserve
41h
38h

Pricing

1 specs
MSRP
$899
n/a
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Reviews

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

Marnaut Safe Harbour 100C

The Marnaut Safe Harbour 100C is widely praised for its unique sea urchin-inspired dial and compact 39mm tonneau case, which wears well despite its 13.2mm thickness. Owners also highlight its value at EUR 549 and the inclusion of an Italian leather strap, with a 2-year warranty addressing reliability concerns. Some reviewers note the slender handset can get lost on the busy dial and the faux-croc strap is stiff out of the box. Overall, owners and reviewers rate the Marnaut Safe Harbour 100C highly for its distinctive design and strong value proposition within the microbrand segment.

Sheffield Superproduction

Owners widely praise the Sheffield SUPERPRODUCTION for its attractive blue dial and overall quality at an affordable price. The bezel action is generally well-regarded, though one owner suggests it could be crisper. The Sellita SW200-1 movement is reported to be accurate, with one owner observing a gain of 3 seconds over 24 hours. The 40mm case is noted by one owner to feel smaller than expected, and the crown is described as finicky and tight for winding and setting. On balance, owners rate the Sheffield SUPERPRODUCTION highly for its dial and value proposition, despite minor criticisms of the crown and case size perception.