Side by side

Grand Seiko SBGA427vsYema Flygraf CPA10

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

SBGA427
Grand SeikoSBGA427
MSRP $5,800
Flygraf CPA10
YemaFlygraf CPA10
MSRP $1,614

At a glance

12 of 29 specs differ
Diameter
SBGA42739mm
Flygraf CPA1040mm
Power Reserve
SBGA42772h
Flygraf CPA1040h
Water Resistance
SBGA427100m
Flygraf CPA10100m
MSRP
SBGA427$5,800
Flygraf CPA10$1,614

Full specifications

Case

5 specs
Category
Dress
Pilot
Diameter
39mm
40mm
Thickness
12.3mm
9.4mm
Lug-to-Lug
46.8mm
46mm
Lug Width
19mm
20mm

Crystal & Dial

3 specs
Crystal
Sapphire
Domed Sapphire
AR Coating
Yes
Inner
Dial Color
Black
Standard

Movement

3 specs
Caliber
9R65
Yema CMM.10
Type
Spring Drive
Automatic
Power Reserve
72h
40h

Pricing

1 specs
MSRP
$5,800
$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 SBGA427

Grand Seiko SBGA427 owners widely praise its extensive Zaratsu polishing and the "hall of mirrors" effect created by its diamond-cut indexes, complemented by a subtle, reeded dial and a striking green seconds hand. The 39mm case is noted for its comfortable, tapered bracelet, and the 9R65 Spring Drive movement is visible through the caseback. Some owners report the highly polished Zaratsu finish is prone to scuffs and scratches, with one mentioning a scratch near 1 o'clock. The Grand Seiko SBGA427 sold for $3750. Overall, owners rate the Grand Seiko SBGA427 highly for its exceptional finishing and the unique visual appeal of its dial and indexes.

Yema Flygraf CPA10

Owners widely praise the Yema Flygraf CPA10 for its light 40mm titanium case, slim 9.4mm profile, and excellent legibility on its blue brushed dial with applied Super-LumiNova markers. The Yema CMM.10 automatic movement is considered terrific, offering chronometric precision of -3/+5 seconds per day and a 70-hour power reserve. Some owners appreciate the aluminum warranty card and packaging as nice touches. The watch is priced at €1,690. One owner noted concerns about the long-term reliability of older in-house movements due to mixed origins, though praised customer service under new management. Overall, owners rate the Yema Flygraf CPA10 highly for its comfortable wearability and attractive, legible dial design.

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