Side by side

Grand Seiko SLGB003vsLongines MASTER COLLECTION MOONPHASE

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

SLGB003
Grand SeikoSLGB003
MSRP $11,400
MASTER COLLECTION MOONPHASE
LonginesMASTER COLLECTION MOONPHASE
MSRP $3,000

At a glance

22 of 29 specs differ
Diameter
SLGB00337mm
MASTER COLLECTION MOONPHASE34mm
Power Reserve
SLGB00372h
MASTER COLLECTION MOONPHASE72h
Water Resistance
SLGB003100m
MASTER COLLECTION MOONPHASE30m
MSRP
SLGB003$11,400
MASTER COLLECTION MOONPHASE$3,000

Full specifications

Case

9 specs
Category
Dress
Moonphase
Diameter
37mm
34mm
Thickness
11.4mm
11.1mm
Lug-to-Lug
44.3mm
41.7mm
Lug Width
20mm
18mm
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
Both sides
Dial Color
Black
Silver
Indices
Applied
Painted Arabic numerals
Lume
None
Super-LumiNova

Movement

7 specs
Caliber
9RB2
L899.5
Type
Spring Drive
Automatic
Beat Rate
28,800 vph
25,200 vph
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
Hours, minutes, seconds, moon phase display and date indicated by small hand at

Pricing

1 specs
MSRP
$11,400
$3,000

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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 SLGB003

Grand Seiko SLGB003 owners widely praise its lightness and comfort, with a dial that offers a shifting character in different lighting conditions. Reviewers note its compact case size enhances wearability and versatility across wrist sizes. However, one owner found the dial underwhelming, and another reported a date disc issue with lower numbers not changing correctly. Some question the value proposition at around $10,000, citing the bracelet and dial as potential drawbacks, while others highlight the movement and smaller dimensions as significant positives. On balance, owners rate the Grand Seiko SLGB003 highly for its movement and compact dimensions, despite some reservations about the dial and bracelet.

From video reviewers

The watch's exceptional accuracy is a notable strength, with both reviewers highlighting its precise timekeeping. A weakness is the relatively high price point compared to other Grand Seiko models. Reviewers disagree on the ideal case size, with one reviewer noting it's relatively small at 37mm, while the other doesn't mention case size as a concern.

Longines MASTER COLLECTION MOONPHASE

Owners widely praise the Longines MASTER COLLECTION MOONPHASE for its mesmerizing and legible dial, balancing classic and complex design elements, with many considering it a great value for its complications. Reviewers note the 40mm case feels well-balanced, and the Caliber L899 movement offers a 64-hour power reserve. Some owners suggest the price point may be high relative to alternatives, and the 3 bar water resistance means it is not suitable for swimming, while the complete calendar requires manual adjustment for shorter months. On balance, the consensus is that owners rate the Longines MASTER COLLECTION MOONPHASE highly for its attractive dial and complications at its price point.

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