Grand Seiko SBGH347vsLongines Ultra-Chron Classic

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Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Grand Seiko SBGH347 at true scale

SBGH347

Longines Ultra-Chron Classic at true scale

Ultra-Chron Classic

Diameter

37mm

40mm

Lug-to-Lug

44.6mm

lowest

47.2mm

Thickness

13.3mm

10.9mm

lowest

Water Resistance

100m

highest

30m

Power Reserve

55h

72h

highest

MSRP

$7,300

$4,000

lowest

Movement

Grand Seiko 9S85

Longines L836.6

Case

6 specs
Diameter
37mm
40mm
Thickness
13.3mm
10.95mm
Lug-to-Lug
44.6mm
47.2mm
Lug Width
19mm
21mm
Water Resistance
100m
30m
Caseback
n/a
Transparent case back with sapphire crystal

Crystal & Dial

4 specs
AR Coating
Yes
Both sides
Dial Color
n/a
Silver
Indices
n/a
Applied indexes
Lume
None
Super-LumiNova

Movement

4 specs
Caliber
Grand Seiko 9S85
Longines L836.6
Beat Rate
0 vph
25,200 vph
Power Reserve
55h
72h
Complications
None
Hours, minutes, seconds, moon phase display and date indicated by small hand at

Pricing

1 specs
MSRP
$7,300
$4,000
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Reviews

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

Grand Seiko SBGH347

The Grand Seiko SBGH347 is praised for its refined 37mm Ever-Brilliant Steel case, impressive Zaratsu polishing, and classy ice-blue dial inspired by frozen waterfalls. Its Hi-Beat 9S85 movement is a significant draw, and the framed date window is preferred over a cyclops. Reviewers note its $6,900 price point offers good value for the elevated finish and light play. However, its 13.3mm thickness is considered noticeable on the compact 37mm case, and the bracelet lacks micro-adjustment or a quick-change system. On balance, reviewers rate the Grand Seiko SBGH347 highly for its faithful re-edition design, impressive finishing, and unique dial at the price point.

Longines Ultra-Chron Classic

The Longines ULTRA-CHRON CLASSIC is widely praised for its high-beat 5Hz L836.6 movement, which offers exceptional accuracy and a smooth seconds hand, with some owners considering it a bargain for these features. Reviewers highlight its successful retro design, faithful to 1960s aesthetics with modern updates like a sapphire crystal and micro-adjustment clasp. Owners note the comfortable bracelet and striking, sparkling indices against a sunray silver dial. Some find the 40mm case wears larger than expected, with several suggesting the 37mm version offers superior wearability. One owner desires a version without a date window, and the dial is described as stark. The 30m water resistance is noted as not exceptional. Overall, owners and reviewers rate the Longines ULTRA-CHRON CLASSIC highly for its blend of vintage charm and modern high-frequency movement performance at its price point.

From video reviewers

The watch's high-beat movement, certified by TimeLab Geneva as an Ultra-Chronometer, is a notable feature. The relatively high price compared to its competitors is a drawback. Reviewers disagree on the optimal case size, with one reviewer mentioning 41mm and 43mm, and the other mentioning 37mm and 40mm.

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