Side by side
Matterhorn Watch Co. DiveMaster 300vsSeiko Prospex Sea Save the Ocean Special Edition
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
12 of 29 specs differDiameter
DiveMaster 30041mm
Prospex Sea Save the Ocean Special Edition45mm
Power Reserve
DiveMaster 30042h
Prospex Sea Save the Ocean Special Edition41h
Water Resistance
DiveMaster 300300m
Prospex Sea Save the Ocean Special Edition200m
MSRP
DiveMaster 300$401
Prospex Sea Save the Ocean Special Edition$625
Full specifications
Case
6 specsCategory
—
Diver
Diameter
41mm
45mm
Thickness
12.8mm
13.2mm
Lug-to-Lug
47mm
47.7mm
Lug Width
—
22mm
Water Resistance
300m
200m
Crystal & Dial
2 specsAR Coating
Inner
Anti-reflective coating on inner surface
Lume
BGW9
LumiBrite on hands, index(es) and bezel
Movement
3 specsCaliber
Miyota 9015
4R36
Power Reserve
42h
41h
Jewels
25
24
Pricing
1 specsMSRP
—
$625
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 Matterhorn Watch Co. DiveMaster 300 vs Seiko Prospex Sea Save the Ocean Special Edition 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.
Melbourne Watch Company SorrentovsSeiko Prospex Sea Save the Ocean Special EditionCrafter Blue Mechanic Ocean Mark IIvsSeiko Prospex Sea Save the Ocean Special EditionPhoibos Great WallvsSeiko Prospex Sea Save the Ocean Special EditionBorealis Watch Co. JamantavsSeiko Prospex Sea Save the Ocean Special EditionMatterhorn Watch Co. DiveMaster 300vsSpinnaker Wreck AutomaticMarathon OSAR-D (Original SAR with Date) Automatic 46mmvsMatterhorn Watch Co. DiveMaster 300