Side by side

Ferro Time Master 70vsGrand Seiko SBGH347

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

The bottom line

The 37mm SBGH347 wears 10mm narrower than the 47mm Time Master 70 — 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.

Ferro Time Master 70

The Ferro Time Master 70 is praised for its distinctive 1970s-inspired polygon case and visually striking silver dial with orange accents and unique lume colors. Owners appreciate the retro design with unique touches, clean dial, and lumed markers, along with the smooth winding of the Miyota 9039 movement. Its 39mm diameter, 10.4mm thickness, and 47mm lug-to-lug dimensions contribute to comfortable wearability, further enhanced by a well-executed faux-single link bracelet featuring a practical on-the-fly micro-adjustment clasp. On balance, owners and reviewers rate the Ferro Time Master 70 highly for its retro design and comfortable wearability.

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.

Where to get them

Check prices & track

Ferro Time Master 70
Ferro Time Master 70
MSRP $685
Grand Seiko SBGH347
Grand Seiko SBGH347
MSRP $7,300
Time Master 70
FerroTime Master 70
MSRP $685
SBGH347
Grand SeikoSBGH347
MSRP $7,300

At a glance

12 of 29 specs differ
Diameter
Time Master 7047mm
SBGH34737mm
Power Reserve
Time Master 7040h
SBGH34755h
Water Resistance
Time Master 7050m
SBGH347100m
MSRP
Time Master 70$685
SBGH347$7,300

Full specifications

Case

7 specs
Category
Chronograph
Dress
Diameter
47mm
37mm
Thickness
13mm
13.3mm
Lug-to-Lug
47mm
44.6mm
Lug Width
20mm
19mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
50m
100m

Crystal & Dial

2 specs
AR Coating
Inner
Yes
Dial Color
Gold
Black

Movement

2 specs
Caliber
Miyota 9039
9S85
Power Reserve
40h
55h

Pricing

1 specs
MSRP
$685
$7,300

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