Marnaut Safe Harbour 100CvsSheffield Superproduction
lug2lug doesn't sell watches. Buy links open the brand's or seller's own site. Some links are affiliate links: lug2lug may earn a commission at no extra cost to you. Disclosures
Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Safe Harbour 100C

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 specsCrystal & Dial
2 specsMovement
1 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
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.
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.
Similar watches
Matched to the watches above on size, movement, style and price, microbrands first. Open any one to dig in.
Also compared
Comparisons nearby in the catalog: alternatives to the watches above paired against the matchup.










