Side by side

Grand Seiko SBGD228vsYema Navygraf Marine Nationale CMM.10

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

SBGD228
Grand SeikoSBGD228
MSRP $273,000
Navygraf Marine Nationale CMM.10
YemaNavygraf Marine Nationale CMM.10
MSRP $1,614

At a glance

12 of 29 specs differ
Diameter
SBGD22844.5mm
Navygraf Marine Nationale CMM.1039mm
Power Reserve
SBGD228192h
Navygraf Marine Nationale CMM.1040h
Water Resistance
SBGD228100m
Navygraf Marine Nationale CMM.10100m
MSRP
SBGD228$273,000
Navygraf Marine Nationale CMM.10$1,614

Full specifications

Case

6 specs
Category
Chronograph
Diver
Diameter
44.5mm
39mm
Thickness
14.4mm
11mm
Lug-to-Lug
52mm
46mm
Lug Width
23mm
19mm
Material
Gold
316L Stainless Steel

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
AR Coating
Yes
Inner

Movement

3 specs
Caliber
9R01
Yema CMM.10
Type
Spring Drive
Automatic
Power Reserve
192h
40h

Pricing

1 specs
MSRP
$273,000
$1,614

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What people say

Owners + reviewers, side by side

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

Grand Seiko SBGD228

The Grand Seiko SBGD228 is a limited edition luxury watch featuring a rose gold case, a red mother-of-pearl dial with garnets and diamonds, and the 8-day Spring Drive Caliber 9R01, noted for its accuracy of ±10 seconds per month. Owners are divided on its aesthetic, with some finding it stunning and elegant, while others consider it too "bling" and gaudy, though all acknowledge it is eye-catching. On balance, owners and reviewers acknowledge the Grand Seiko SBGD228's striking and opulent design, supported by its exclusive movement and luxurious materials.

Yema Navygraf Marine Nationale CMM.10

The Yema Navygraf Marine Nationale CMM.10 is lauded for its vibrant blue dial and bezel, a slimmer 39mm case at 11mm thick, and its in-house CMM.10 caliber offering a 70-hour power reserve. Reviewers highlight the clean, legible dial, blue sapphire bezel insert, and competitive pricing under $2,000. However, the steel bracelet's clasp is noted by multiple sources as rattly and feeling slightly cheap, with one reviewer finding it difficult to open. Accuracy is reported within a range of +5/-3 seconds per day. Overall, reviewers praise the Yema Navygraf Marine Nationale CMM.10 for its attractive design and value proposition, tempered by minor concerns regarding the bracelet clasp.

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