Side by side

Grand Seiko SBGY007vsNOMOS Glashütte Tetra 27 duo

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

SBGY007
Grand SeikoSBGY007
MSRP $8,900
Tetra 27 duo
NOMOS GlashütteTetra 27 duo
MSRP $2,090

At a glance

17 of 29 specs differ
Diameter
SBGY00738.5mm
Tetra 27 duo27.5mm
Power Reserve
SBGY00772h
Tetra 27 duo53 hoursh
Water Resistance
SBGY00730m
Tetra 27 duo50m
MSRP
SBGY007$8,900
Tetra 27 duo$2,090

Full specifications

Case

7 specs
Diameter
38.5mm
27.5mm
Thickness
10.2mm
6.1mm
Lug-to-Lug
43.7mm
38.5mm
Lug Width
19mm
18mm
Finish
Brushed and polished
Water Resistance
30m
50m
Caseback
Solid

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Yes
Dial Color
Black
White
Indices
Applied

Movement

5 specs
Caliber
9R31
DUW 4001
Type
Spring Drive
Manual
Beat Rate
28,800 vph
21,600 vph
Power Reserve
72h
53 hoursh
Jewels
25
17

Pricing

1 specs
MSRP
$8,900
$2,090

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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 SBGY007

Grand Seiko SBGY007 owners and reviewers widely praise its stunning, textured blue dial, inspired by frozen Lake Suwa, and its clean, time-only aesthetic. The watch is lauded for its impeccable finishing, including high polish and Zaratsu polishing, and its classic, thin 38.5mm stainless steel dress case. The hand-wound Spring Drive Caliber 9R31 movement is noted for its accuracy, rated to ±1 second per day, and a 72-hour power reserve, with its power reserve indicator discreetly placed on the case back. While some reviewers suggest room for improvement in Grand Seiko's pricing structure, the $8,300 USD price is seen by others as a relatively affordable entry into the brand's high-end offerings. On balance, the consensus is that the Grand Seiko SBGY007 is highly regarded for its exceptional dial artistry and refined finishing at its price point.

NOMOS Glashütte Tetra 27 duo

Owners widely praise the NOMOS Glashütte Tetra 27 duo for its ideal small and light wearing dimensions, beautiful dial that shifts with lighting, and gorgeous blued hands, with some finding its 27mm size perfect for vintage preferences. The watch is noted for its precise, Art Deco-inspired design and good finishing. However, some owners and reviewers consider the 27.5mm size too small, labeling it a women's watch, though others find it unisex and note its square shape can make it wear larger. One owner flags the buckle as disappointingly generic and the grey suede strap as prone to getting dirty. Overall, owners and reviewers highly regard the NOMOS Glashütte Tetra 27 duo for its elegant design and comfortable wearability at its price point.

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