Side by side

Grand Seiko SBGA427vsYema Pearldiver

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

SBGA427
Grand SeikoSBGA427
MSRP $5,800
Pearldiver
YemaPearldiver
MSRP $491

At a glance

12 of 29 specs differ
Diameter
SBGA42739mm
Pearldiver38mm
Power Reserve
SBGA42772h
Pearldiver40h
Water Resistance
SBGA427100m
Pearldiver100m
MSRP
SBGA427$5,800
Pearldiver$491

Full specifications

Case

6 specs
Category
Dress
Diver
Diameter
39mm
38mm
Thickness
12.3mm
14mm
Lug-to-Lug
46.8mm
46mm
Lug Width
19mm
20mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

2 specs
AR Coating
Yes
Inner
Dial Color
Black
Steel

Movement

3 specs
Caliber
9R65
Type
Spring Drive
Automatic
Power Reserve
72h
40h

Pricing

1 specs
MSRP
$5,800
$491

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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 Pearldiver

Owners widely praise the Yema Pearldiver's vintage aesthetic, clean dial, and sub-40mm dimensions with short lug-to-lug, noting its in-house movement and solid build quality. Accuracy figures range from dead-on at 0 seconds per day to +2 seconds per day, though some owners have reported dead-on-arrival movements requiring returns. The bracelet clasp is described by one owner as "pretty cheap." Some find the design pedestrian and lacking uniqueness, with the faux lume color noted as too dark by one commenter. Overall, owners rate the Yema Pearldiver highly for its vintage appeal and wearable dimensions at the price.

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