Side by side
Seestern Sub 300 V4vsSerket Watch Co Reef Mariana
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
15 of 29 specs differDiameter
Sub 300 V442mm
Reef Mariana40mm
Power Reserve
Sub 300 V441h
Reef Mariana—
Water Resistance
Sub 300 V4200m
Reef Mariana200m
MSRP
Sub 300 V4$10
Reef Mariana$449
Full specifications
Case
7 specsCategory
Diver
—
Diameter
42mm
40mm
Thickness
13mm
13.2mm
Lug-to-Lug
46mm
47.5mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed + Sandblasted
Brushed and polished
Caseback
Solid screw-down
Solid
Crystal & Dial
2 specsAR Coating
Underside
Inner
Lume
Japan Lume (blue glow)
BGW9
Movement
5 specsCaliber
Seiko NH35A
Seiko NH35
Beat Rate
21,600 vph
28,800 vph
Power Reserve
41h
—
Jewels
24
25
Complications
GMT, Date
None
Pricing
1 specsMSRP
$10
$449
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