Side by side
Marnaut Safe Harbour 100CvsSeiko Prospex SPEEDTIMER Mechanical
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
12 of 29 specs differDiameter
Safe Harbour 100C39mm
Prospex SPEEDTIMER Mechanical39.5mm
Power Reserve
Safe Harbour 100C41h
Prospex SPEEDTIMER Mechanical72h
Water Resistance
Safe Harbour 100C100m
Prospex SPEEDTIMER Mechanical200m
MSRP
Safe Harbour 100C$899
Prospex SPEEDTIMER Mechanical$995
Full specifications
Case
5 specsCategory
—
Chronograph
Diameter
39mm
39.5mm
Thickness
13mm
12mm
Lug-to-Lug
45mm
44.5mm
Water Resistance
100m
200m
Crystal & Dial
3 specsCrystal Shape
Flat
Curved
AR Coating
Inner
Anti-reflective coating on inner surface
Lume
None
LumiBrite on hands and index(es)
Movement
3 specsCaliber
Sellita SW200-1
6R55
Power Reserve
41h
72h
Jewels
25
24
Pricing
1 specsMSRP
$899
$995
More watches worth a look
Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.
Follow this matchup
Get a note when Marnaut Safe Harbour 100C vs Seiko Prospex SPEEDTIMER Mechanical gets more votes, a community discussion, or a price drop. No account needed.
People also compared
Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.
Marnaut Safe Harbour 100C Safe Harbour Classic 100 (cushion case, multi-subdial complication, applied batons)vsSeiko Prospex SPEEDTIMER MechanicalPompeak Sub-AquaticvsSeiko Prospex SPEEDTIMER MechanicalEza 1972 DivervsSeiko Prospex SPEEDTIMER MechanicalCircula Watches SuperSportvsSeiko Prospex SPEEDTIMER MechanicalMarnaut Safe Harbour 100CvsYema Flygraf NavigatorMarnaut Safe Harbour 100CvsYema Navygraf Chrono