Side by side
Serica Ref. 5303 Diving ChronometervsMarnaut Safe Harbour 100
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
11 of 29 specs differDiameter
Ref. 5303 Diving Chronometer39mm
Safe Harbour 10039mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Safe Harbour 10041h
Water Resistance
Ref. 5303 Diving Chronometer300m
Safe Harbour 100100m
MSRP
Ref. 5303 Diving Chronometer$1,768
Safe Harbour 100$1,042
Full specifications
Case
4 specsCategory
Diver
—
Thickness
12.2mm
13mm
Lug-to-Lug
46.5mm
45mm
Water Resistance
300m
100m
Crystal & Dial
3 specsAR Coating
Yes
Inner
Dial Color
Enamel Black
Black
Lume
Super-LumiNova
SuperLuminova C3
Movement
3 specsCaliber
M100 COSC
Sellita SW200-1
Power Reserve
42h
41h
Complications
COSC
None
Pricing
1 specsMSRP
$1,768
—
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 Serica Ref. 5303 Diving Chronometer vs Marnaut Safe Harbour 100 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.
Serica Ref. 5330 Diving Chronometer DatevsMarnaut Safe Harbour 100Marnaut Safe Harbour 100vsHelgray Poseidon Diver (Automatic)Boldr CharizardvsMarnaut Safe Harbour 100Marnaut Safe Harbour 100vsBoldr The T Rex By Boldr X NitecoreSerica Ref. 5303 Diving ChronometervsMarnaut Safe Harbour 100CSerica Ref. 5303 Diving ChronometervsMarnaut Safe Harbour 100C Safe Harbour Classic 100 (cushion case, multi-subdial complication, applied batons)