Side by side

Grand Seiko SLGH017vsLongines LONGINES AVIGATION BIGEYE

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

SLGH017
Grand SeikoSLGH017
MSRP $10,500
LONGINES AVIGATION BIGEYE
LonginesLONGINES AVIGATION BIGEYE
MSRP $4,400

At a glance

12 of 29 specs differ
Diameter
SLGH01740mm
LONGINES AVIGATION BIGEYE41mm
Power Reserve
SLGH01780h
LONGINES AVIGATION BIGEYE40h
Water Resistance
SLGH017100m
LONGINES AVIGATION BIGEYE30m
MSRP
SLGH017$10,500
LONGINES AVIGATION BIGEYE$4,400

Full specifications

Case

7 specs
Category
Dress
Chronograph
Diameter
40mm
41mm
Thickness
11.7mm
14.5mm
Lug-to-Lug
47mm
48.7mm
Lug Width
22mm
20mm
Material
Titanium
Stainless Steel
Water Resistance
100m
30m

Crystal & Dial

2 specs
AR Coating
Yes
Inner
Dial Color
Black
Blue

Movement

2 specs
Caliber
9SA5
L688.5
Power Reserve
80h
40h

Pricing

1 specs
MSRP
$10,500
$4,400

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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 AVIGATION BIGEYE

Owners and reviewers widely praise the Longines Avigation Bigeye for its unique, asymmetric dial, vintage military aesthetic, and cohesive design, with one reviewer noting its GPHG Best Revival prize win. The tactile chronograph pusher action and reliable L688.2 column wheel movement are highlighted, as is the watch's legibility and versatile strap-swapping potential due to its 20mm lug width. However, criticisms include the 30-minute sub-dial's three-minute hash marks, which some find compromise reading speed, and the lack of drilled lugs. The watch's thickness, around 14.45mm, is noted as typical for its movement, and some owners mention minor QC issues with chronograph hand alignment and a loud rotor. On balance, owners and reviewers rate the Longines Avigation Bigeye highly for its distinctive vintage-inspired design and solid chronograph performance at its price point.

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