Side by side

Grand Seiko SLGA009vsLongines MASTER COLLECTION MOONPHASE

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

SLGA009
Grand SeikoSLGA009
MSRP $9,800
MASTER COLLECTION MOONPHASE
LonginesMASTER COLLECTION MOONPHASE
MSRP $3,450

At a glance

21 of 29 specs differ
Diameter
SLGA00940mm
MASTER COLLECTION MOONPHASE40mm
Power Reserve
SLGA009120h
MASTER COLLECTION MOONPHASE72h
Water Resistance
SLGA009100m
MASTER COLLECTION MOONPHASE30m
MSRP
SLGA009$9,800
MASTER COLLECTION MOONPHASE$3,450

Full specifications

Case

7 specs
Category
Dress
Moonphase
Thickness
11.8mm
11.1mm
Lug-to-Lug
47.9mm
47mm
Lug Width
22mm
21mm
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
Dial Color
Black
Blue
Indices
Applied
Diamond indexes
Lume
None
Super-LumiNova

Movement

8 specs
Caliber
9RA2
L899.5
Type
Spring Drive
Automatic
Beat Rate
28,800 vph
25,200 vph
Power Reserve
120h
72h
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
$9,800
$3,450

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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 SLGA009

The Grand Seiko SLGA009 "White Birch II" is praised for its Spring Drive Caliber 9RA2 movement, offering exceptional accuracy of ±0.5 seconds per day and a 120-hour power reserve. Reviewers highlight its refined dial texture, inspired by Shinshu forests, and the Series 9 design with a frost-finished movement. The watch features a 40mm stainless steel case and a power reserve indicator on the movement bridge. However, its price of $8,600 to $9,100 USD is noted as relatively expensive, reflecting Grand Seiko's increasing price points. Overall, reviewers consider the Grand Seiko SLGA009 a highly refined timepiece, with its advanced Spring Drive movement and aesthetic improvements being key strengths.

Longines MASTER COLLECTION MOONPHASE

Owners widely praise the Longines MASTER COLLECTION MOONPHASE for its legible dial, romantic moonphase complication, and overall value for money. Reviewers note its classic design, barleycorn guilloché dial, and Roman numerals. Some owners find the strap superb, while others mention the cut-off Roman numeral six as a potential drawback. The watch has a 3 bar water resistance, limiting its use to drier environments, and the complete calendar requires manual adjustment for shorter months. On balance, the consensus is that the Longines MASTER COLLECTION MOONPHASE is highly regarded for its attractive dial and complication at its price point.

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