Side by side

Grand Seiko SBGH347vsZelos Hammerhead V3 300m Titanium

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

The bottom line

The 37mm SBGH347 wears 7mm narrower than the 44mm Hammerhead V3 300m Titanium — that's a meaningful jump on most wrists.

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 SBGH347

The Grand Seiko SBGH347 is lauded for its refined 37mm Ever-Brilliant Steel case, impressive Zaratsu polishing, and classy ice-blue dial inspired by frozen waterfalls. Its Hi-Beat 9S85 movement is a significant draw, and the framed date window is preferred over a cyclops. Reviewers note the bracelet lacks micro-adjustment or a quick-change system, and some wished the 13.3mm thickness was slightly thinner on the compact case. Overall, reviewers praise the Grand Seiko SBGH347 for its elevated finish and value, with the Hi-Beat movement being a significant draw.

Zelos Hammerhead V3 300m Titanium

The Zelos Hammerhead V3 300m Titanium is widely praised for its exceptional lume, unique and beautiful dial finishing that reflects light dramatically, and solid build quality that exceeds its price point. Owners also highlight its comfortable wearability, especially the lightweight titanium variant, and the convenient on-the-fly micro-adjustment on the bracelet. One owner notes the Japanese movement performs better than anticipated, and the Ti-Damascus variant features a unique, patterned dial and bezel. However, some owners find the 44mm size large, the crown "off," and the bracelet clasp could be more scratch-resistant, with resizing pins described as stubborn. Reattaching the bracelet after removal is also noted as extremely difficult. Overall, owners rate the Zelos Hammerhead V3 300m Titanium highly for its impressive dial aesthetics and value for money.

Where to get them

Check prices & track

Grand Seiko SBGH347
Grand Seiko SBGH347
MSRP $7,300
Zelos Hammerhead V3 300m Titanium
Zelos Hammerhead V3 300m Titanium
MSRP $559
SBGH347
Grand SeikoSBGH347
MSRP $7,300
Hammerhead V3 300m Titanium
ZelosHammerhead V3 300m Titanium
MSRP $559

At a glance

13 of 29 specs differ
Diameter
SBGH34737mm
Hammerhead V3 300m Titanium44mm
Power Reserve
SBGH34755h
Hammerhead V3 300m Titanium40h
Water Resistance
SBGH347100m
Hammerhead V3 300m Titanium300m
MSRP
SBGH347$7,300
Hammerhead V3 300m Titanium$559

Full specifications

Case

7 specs
Category
Dress
Diver
Diameter
37mm
44mm
Thickness
13.3mm
13mm
Lug-to-Lug
44.6mm
44mm
Lug Width
19mm
22mm
Material
Stainless Steel
Titanium
Water Resistance
100m
300m

Crystal & Dial

3 specs
Crystal
Sapphire
Domed Sapphire
AR Coating
Yes
Inner
Dial Color
Black
Ti - Mosaic MOP

Movement

2 specs
Caliber
9S85
Seiko NH35
Power Reserve
55h
40h

Pricing

1 specs
MSRP
$7,300
$559

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