Invicta Pro Diver 23678vsMarnaut Safe Harbour 100C
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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.

Pro Diver 23678

Safe Harbour 100C
Diameter
40mm
39mm
Lug-to-Lug
n/a
45mm
Thickness
n/a
13mm
Water Resistance
200m
highest
100m
Power Reserve
n/a
41h
MSRP
n/a
$899
Movement
Seiko NH35
Sellita SW200-1
Case
4 specsCrystal & Dial
2 specsMovement
2 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Invicta Pro Diver 23678 for its exceptional value, with its 40mm case size frequently noted as a comfortable fit. The Seiko NH35 automatic movement is a standard feature, and the watch includes a screw-down crown and 200m water resistance. While one owner reports a loose, non-clicking bezel and significant time loss, another owner specifically praises the bezel's 120 clicks and satisfying feel. The luminescence is considered poor by one owner, though the exhibition caseback is a noted feature. Overall, owners rate the Invicta Pro Diver 23678 highly for its strong value proposition and capable build at its price point.
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.
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