Side by side
S.U.F Helsinki 180 Kelo BluevsSerket Watch Co Reef Mariana
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
10 of 29 specs differDiameter
180 Kelo Blue38.7mm
Reef Mariana40mm
Power Reserve
180 Kelo Blue42h
Reef Mariana—
Water Resistance
180 Kelo Blue100m
Reef Mariana200m
MSRP
180 Kelo Blue$2,865
Reef Mariana$449
Full specifications
Case
5 specsDiameter
38.7mm
40mm
Thickness
9.4mm
13.2mm
Lug-to-Lug
46.4mm
47.5mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
100m
200m
Crystal & Dial
2 specsDial Color
Blue
Orange
Lume
None
BGW9
Movement
2 specsCaliber
Soprod A10
Seiko NH35
Power Reserve
42h
—
Pricing
1 specsMSRP
—
$449
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