Side by side

Grand Seiko SLGB006vsZelos Comet 39

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

SLGB006
Grand SeikoSLGB006
MSRP $43,600
Comet 39
ZelosComet 39
MSRP $2,499

At a glance

12 of 29 specs differ
Diameter
SLGB00637mm
Comet 3939mm
Power Reserve
SLGB00672h
Comet 3940h
Water Resistance
SLGB006100m
Comet 3950m
MSRP
SLGB006$43,600
Comet 39$2,499

Full specifications

Case

5 specs
Diameter
37mm
39mm
Thickness
11.4mm
7.6mm
Lug-to-Lug
44.3mm
39mm
Material
Gold
316L Stainless Steel
Water Resistance
100m
50m

Crystal & Dial

3 specs
Crystal
Sapphire
Domed Sapphire
AR Coating
Yes
Inner
Dial Color
Black
Tantalum LE

Movement

3 specs
Caliber
9RB2
ETA/Peseux 7001
Type
Spring Drive
Manual
Power Reserve
72h
40h

Pricing

1 specs
MSRP
$43,600
$2,499

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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 SLGB006

The Grand Seiko SLGB006 is praised for its stunning "Ice Forest at Dawn" textured dial and 37mm 18k yellow gold case, with some finding it gorgeous enough to wear even if they don't typically prefer gold watches. It houses the Spring Drive Calibre 9RB2 movement, noted for its "Ultra Fine Accuracy" of ±20 seconds per year and a 72-hour power reserve. However, the Grand Seiko SLGB006 is considered expensive by some, with a price of $43,600 or €44,700 for its limited production of 80 pieces, and one owner suggests alternatives offer a more refined feel. The watch lacks the Evolution 9 micro-adjustment system. Overall, owners and reviewers highlight the Grand Seiko SLGB006's striking dial and movement accuracy as its primary strengths, despite its high price point and limited availability.

Zelos Comet 39

Owners widely praise the Zelos Comet 39 for its wearable 39mm size, thin profile under 10mm thanks to its manual-wind Sellita SW215 movement, and its captivating dial with a deep starburst effect. The winding action is described as a joy, and the watch is considered a stunner for its price, blending modern and vintage aesthetics. Some owners note frustration with Zelos's limited production runs leading to quick sell-outs. One owner found the logo childlike, while another experienced strap-rubbing issues with the short lugs, which were resolved with a Milanese bracelet. Overall, owners and reviewers rate the Zelos Comet 39 highly for its excellent value and striking dial design.

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