Side by side

Fortis Marinemaster M-44 DLCvsGrand Seiko SBGR321

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Marinemaster M-44 DLC
FortisMarinemaster M-44 DLC
MSRP $5,450
SBGR321
Grand SeikoSBGR321
MSRP $5,200

At a glance

12 of 29 specs differ
Diameter
Marinemaster M-44 DLC44mm
SBGR32140mm
Power Reserve
Marinemaster M-44 DLC38h
SBGR32172h
Water Resistance
Marinemaster M-44 DLC300m
SBGR321100m
MSRP
Marinemaster M-44 DLC$5,450
SBGR321$5,200

Full specifications

Case

7 specs
Category
Diver
Dress
Diameter
44mm
40mm
Thickness
14mm
13mm
Lug-to-Lug
46.6mm
Lug Width
22mm
20mm
Material
Stainless Steel (DLC)
Stainless Steel
Water Resistance
300m
100m

Crystal & Dial

1 specs
AR Coating
Inner
Yes

Movement

3 specs
Caliber
Sellita SW220-1
9S65
Power Reserve
38h
72h
Jewels
26
25

Pricing

1 specs
MSRP
$5,450
$5,200

Follow this matchup

Get a note when Fortis Marinemaster M-44 DLC vs Grand Seiko SBGR321 gets more votes, a community discussion, or a price drop. No account needed.

What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Fortis Marinemaster M-44 DLC

The Fortis Marinemaster M-44 DLC is widely praised for its robust COSC-certified Kenissi Werk 11 movement, offering a 70-hour power reserve, and its stealthy, scratch-resistant Dianoir DLC coating. Owners find it comfortable to wear despite its 44mm size, with one owner considering it a standout piece. Some reviewers note a subtle difference in the color tone of the DLC coating on the crown and bezel lock between variants. Overall, owners and reviewers regard the Fortis Marinemaster M-44 DLC highly for its durable construction and reliable, high-spec movement.

Grand Seiko SBGR321

Grand Seiko SBGR321 owners and reviewers widely praise its attractive design, compelling dimensions, and robust movement. The watch features sharp case lines with contrasting brushing and polishing, a 40mm steel case that provides presence without bulk, and 100m water resistance. Its sunburst blue dial, inspired by the dawn sky over Mount Iwate, showcases Grand Seiko's signature finishing on applied markers and hands, with a red-tipped seconds hand. The 9S65 automatic movement is noted for its precision, running within specifications, with one source reporting a +5 to -3 seconds a day rate and a 3-day power reserve. A blue rotor with a crimson rim, also inspired by Mount Iwate, is visible through the display caseback. On balance, owners and reviewers rate the Grand Seiko SBGR321 highly for its exceptional finishing and compelling blue dial design at its price point.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.