Side by side

Grand Seiko SLGH017vsLongines FLAGSHIP CLASSIC

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

SLGH017
Grand SeikoSLGH017
MSRP $10,500
FLAGSHIP CLASSIC
LonginesFLAGSHIP CLASSIC
MSRP $2,450

At a glance

20 of 29 specs differ
Diameter
SLGH01740mm
FLAGSHIP CLASSIC30mm
Power Reserve
SLGH01780h
FLAGSHIP CLASSIC45h
Water Resistance
SLGH017100m
FLAGSHIP CLASSIC30m
MSRP
SLGH017$10,500
FLAGSHIP CLASSIC$2,450

Full specifications

Case

8 specs
Diameter
40mm
30mm
Thickness
11.7mm
8.1mm
Lug-to-Lug
47mm
36.4mm
Lug Width
22mm
15mm
Material
Titanium
Stainless Steel
Finish
Brushed and polished
Water Resistance
100m
30m
Caseback
Solid
Transparent case back with sapphire crystal

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Yes
Underside
Dial Color
Black
Brown
Indices
Applied
Diamond indexes
Lume
None
Super-LumiNova

Movement

6 specs
Caliber
9SA5
L592.5
Power Reserve
80h
45h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
Hours, minutes, seconds and date

Pricing

1 specs
MSRP
$10,500
$2,450

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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 SLGH017

Grand Seiko SLGH017 owners and reviewers widely praise its impeccable finishing on the applied markers and handset, and its lightweight titanium case and bracelet. The high-beat 9SA5 movement is noted for its approximately 80-hour power reserve, with accuracy figures reported by owners ranging from +4 sec/day to +5 to -3 seconds per day, though some owners express concerns about accuracy deviating significantly from specifications. Some find the "Night Birch" dial stunning and appreciate the Evo 9 case design, while others note the dial texture appears less pronounced on its matte black surface and criticize the handset's proportions and lack of lume. The Grand Seiko SLGH017 is priced at €10,500. On balance, owners and reviewers rate the Grand Seiko SLGH017 highly for its lightweight titanium construction and impeccable finishing.

Longines FLAGSHIP CLASSIC

Owners widely praise the Longines FLAGSHIP CLASSIC for its vintage-inspired design, impressive finishing, and value, with many appreciating its classic aesthetic and sharp rendition of a traditional look. The 38.5mm size is frequently cited as a positive for those seeking a more traditional fit, and the "rice grain" bracelet and color are noted as versatile. Some owners find the watch lacks personality compared to other options, and one reviewer points out its 12.4mm thickness can prevent it from easily slipping under a cuff. On balance, owners and reviewers rate the Longines FLAGSHIP CLASSIC highly for its well-executed classic design and strong value proposition.

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