Side by side

Marnaut Safe Harbour 100CvsSeiko Prospex Land Mechanical

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

Safe Harbour 100C
MarnautSafe Harbour 100C
MSRP $899
Prospex Land Mechanical
SeikoProspex Land Mechanical
MSRP $995
What people say

Owners + reviewers, side by side

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

Marnaut Safe Harbour 100C

The Marnaut Safe Harbour is widely praised for its compact 39mm tonneau case and its unique sea urchin-inspired dial. Reviewers note the case wears well despite its 13.2mm thickness. One owner flagged a potential lume inconsistency, which was attributed to UV lighting effects. The slender handset can be difficult to read against the busy dial, and the faux-crocodile strap is stiff initially. Overall, owners and reviewers appreciate the Marnaut Safe Harbour for its distinctive dial and comfortable wearability.

Seiko Prospex Land Mechanical

Owners widely praise the Seiko Prospex Land Mechanical for its unique style, useful day-date complication, and value, with some finding it suitable as a one-watch-for-all-occasions. Accuracy and durability are noted as strengths, with one owner reporting good performance even in water submersion. However, multiple owners criticize its size, with figures around 41mm to 43mm and 14.4mm thickness being flagged as too large and thick for smaller wrists. The Hardlex crystal and a potentially loose inner compass bezel are also points of criticism. On balance, owners rate the Seiko Prospex Land Mechanical highly for its unique style and value, despite concerns over its substantial dimensions.

At a glance

11 of 29 specs differ
Diameter
Safe Harbour 100C39mm
Prospex Land Mechanical39.5mm
Power Reserve
Safe Harbour 100C41h
Prospex Land Mechanical72h
Water Resistance
Safe Harbour 100C100m
Prospex Land Mechanical200m
MSRP
Safe Harbour 100C$899
Prospex Land Mechanical$995

Full specifications

Case

5 specs
Category
Field
Diameter
39mm
39.5mm
Thickness
13mm
12.7mm
Lug-to-Lug
45mm
46.4mm
Water Resistance
100m
200m

Crystal & Dial

2 specs
AR Coating
Inner
Anti-reflective coating on inner surface
Lume
None
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
Sellita SW200-1
6R55
Power Reserve
41h
72h
Jewels
25
24

Pricing

1 specs
MSRP
$899
$995
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