Side by side

Grand Seiko SLGH017vsLongines LA GRANDE CLASSIQUE DE LONGINES

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

SLGH017
Grand SeikoSLGH017
MSRP $10,500
LA GRANDE CLASSIQUE DE LONGINES
LonginesLA GRANDE CLASSIQUE DE LONGINES
MSRP $2,300

At a glance

22 of 29 specs differ
Diameter
SLGH01740mm
LA GRANDE CLASSIQUE DE LONGINES29mm
Power Reserve
SLGH01780h
LA GRANDE CLASSIQUE DE LONGINES40h
Water Resistance
SLGH017100m
LA GRANDE CLASSIQUE DE LONGINES30m
MSRP
SLGH017$10,500
LA GRANDE CLASSIQUE DE LONGINES$2,300

Full specifications

Case

8 specs
Diameter
40mm
29mm
Thickness
11.7mm
4.5mm
Lug-to-Lug
47mm
33.2mm
Lug Width
22mm
16mm
Material
Titanium
Red PVD coating
Finish
Brushed and polished
Water Resistance
100m
30m
Caseback
Solid

Crystal & Dial

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

Movement

8 specs
Caliber
9SA5
L420.2
Type
Automatic
Quartz
Beat Rate
28,800 vph
25,200 vph
Power Reserve
80h
40h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
Hours and minutes

Pricing

1 specs
MSRP
$10,500
$2,300

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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 LA GRANDE CLASSIQUE DE LONGINES

Owners widely praise the La Grande Classique de Longines for its extreme thinness, elegance, and timeless simplicity, with many finding it comfortable and lightweight due to its slim, flat design. The quartz version is recommended for its accuracy and convenience, while both quartz and automatic models are noted for their slim profiles and elegant aesthetics, with the bracelet being comfortable. Some owners are split on the styling, with Roman numerals appealing to some but not all, and one owner finds the Tonneau collection model a lovely dress watch despite preferring round faces. Owners suggest pre-owned options for better value, with prices ranging from $300-$1000 USD depending on the model and condition. One owner reports frequent battery replacements on the quartz model, with batteries lasting only months. Overall, owners rate the La Grande Classique de Longines highly for its slim, elegant design and value, particularly on the pre-owned market.

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