Side by side

IWC Schaffhausen Iw324906 Ingenieur AutomaticvsGrand Seiko SLGW004

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

Iw324906 Ingenieur Automatic
IWC SchaffhausenIw324906 Ingenieur Automatic
MSRP $47,500
SLGW004
Grand SeikoSLGW004
MSRP $30,000
What people say

Owners + reviewers, side by side

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

IWC Schaffhausen Iw324906 Ingenieur Automatic

The IWC Schaffhausen Iw324906 Ingenieur Automatic is praised for its compact 35.1mm case, 9.4mm thickness, and excellent finishing on the case and bracelet, with owners appreciating its understated presence and beautiful, transforming aqua dial. Reviewers and owners highlight the Gérald Genta-inspired design and its smart compact sizing, with some finding it perfect for smaller wrists and a comfortable daily wear. Accuracy figures vary, with one owner reporting 1 second per day and another noting 12 seconds slow per day, while others mention a 42-hour power reserve. Owners are split on its value, with many finding the IWC Schaffhausen Iw324906 Ingenieur Automatic vastly overpriced, while some see it as a bargain compared to other integrated bracelet watches. Overall, owners rate the IWC Schaffhausen Iw324906 Ingenieur Automatic highly for its compact size and excellent finishing, though opinions on its pricing are divided.

Grand Seiko SLGW004

The Grand Seiko SLGW004 is praised for its elegant, faithful reissue design and impressive technical execution, featuring a new 9SA4 hi-beat manual-winding movement with an 80-hour power reserve and accuracy of -3/+5 seconds per day. Reviewers highlight the sharp case facets, double-signed dial, and beautifully decorated movement visible through the display caseback, along with an enjoyable winding experience. One reviewer noted a desire for better water resistance and expressed a dislike for the etched sapphire case back. Overall, reviewers rate the Grand Seiko SLGW004 highly for its elegant design and technically impressive movement.

At a glance

18 of 29 specs differ
Diameter
Iw324906 Ingenieur Automatic35.1mm
SLGW00438.8mm
Power Reserve
Iw324906 Ingenieur Automatic42h
SLGW00480h
Water Resistance
Iw324906 Ingenieur Automatic100m
SLGW00430m
MSRP
Iw324906 Ingenieur Automatic$47,500
SLGW004$30,000

Full specifications

Case

9 specs
Category
Integrated
Dress
Diameter
35.1mm
38.8mm
Thickness
9.4mm
10.4mm
Lug-to-Lug
43.7mm
Lug Width
19mm
Material
18 Ct 5N Gold
Gold
Finish
Steel
Brushed and polished
Water Resistance
100m
30m
Caseback
Solid

Crystal & Dial

4 specs
Crystal
Sapphire
Crystal Shape
Flat
AR Coating
Yes
Indices
Applied

Movement

4 specs
Caliber
47110
9SA4
Type
Automatic
Manual
Power Reserve
42h
80h
Jewels
23
25

Pricing

1 specs
MSRP
$47,500
$30,000
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