Side by side

Grand Seiko SBGM245vsYema Navygraf Marine Nationale CMM.10

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

SBGM245
Grand SeikoSBGM245
MSRP $6,100
Navygraf Marine Nationale CMM.10
YemaNavygraf Marine Nationale CMM.10
MSRP $1,614

At a glance

12 of 29 specs differ
Diameter
SBGM24540.5mm
Navygraf Marine Nationale CMM.1039mm
Power Reserve
SBGM24572h
Navygraf Marine Nationale CMM.1040h
Water Resistance
SBGM245200m
Navygraf Marine Nationale CMM.10100m
MSRP
SBGM245$6,100
Navygraf Marine Nationale CMM.10$1,614

Full specifications

Case

7 specs
Category
GMT
Diver
Diameter
40.5mm
39mm
Thickness
14.4mm
11mm
Lug-to-Lug
48.6mm
46mm
Lug Width
20mm
19mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
200m
100m

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
AR Coating
Yes
Inner

Movement

2 specs
Caliber
9S66
Yema CMM.10
Power Reserve
72h
40h

Pricing

1 specs
MSRP
$6,100
$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 SBGM245

Owners widely appreciate the Grand Seiko SBGM245 for its blend of sport and luxury, with one enthusiast highlighting its superior workmanship over quartz movements. However, opinions on its size vary, as one owner found the SBGM245 too large, preferring the comfort of a different variant. Overall, owners value the Grand Seiko SBGM245 for its refined craftsmanship, though its wearability is a point of personal preference.

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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