Marnaut Safe Harbour 100CvsTimefactors Royal Navy Diver PRS-82
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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.

Safe Harbour 100C

Royal Navy Diver PRS-82
Diameter
39mm
40mm
Lug-to-Lug
45mm
lowest
47mm
Thickness
13mm
lowest
14mm
Water Resistance
100m
300m
highest
Power Reserve
41h
n/a
MSRP
$899
$664
lowest
Movement
Sellita SW200-1
Sellita SW200-1
Case
4 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 Timefactors Royal Navy Diver PRS-82 for its excellent case finishing, precise 40mm sizing, and sapphire crystal, with many appreciating its value and heritage as a reissue. The watch's machining and wearability on smaller wrists due to its short lug-to-lug distance are frequently highlighted. Some owners note the lume is decent but fades faster than other divers, and one owner points out a clash between the hands' lume pip color and the dial lume. A characteristic "stutter" in the seconds hand from the Sellita SW200-1 movement is also mentioned. Overall, owners rate the Timefactors Royal Navy Diver PRS-82 highly for its authentic reissue appeal and detailed finishing at its price point.
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