Side by side

Astor + Banks Fortitude ProvsGrand Seiko STGK031

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

Fortitude Pro
Astor + BanksFortitude Pro
MSRP $675
STGK031
Grand SeikoSTGK031
MSRP $6,600

At a glance

12 of 29 specs differ
Diameter
Fortitude Pro38.5mm
STGK03130mm
Power Reserve
Fortitude Pro40h
STGK03150h
Water Resistance
Fortitude Pro200m
STGK031100m
MSRP
Fortitude Pro$675
STGK031$6,600

Full specifications

Case

7 specs
Category
Sport
Dress
Diameter
38.5mm
30mm
Thickness
11.9mm
10.5mm
Lug-to-Lug
45.5mm
36.2mm
Lug Width
20mm
15mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
200m
100m

Crystal & Dial

2 specs
AR Coating
Inner
Yes
Dial Color
Magenta
Black

Movement

2 specs
Caliber
Miyota 9015
9S27
Power Reserve
40h
50h

Pricing

1 specs
MSRP
$675
$6,600

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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.

Astor + Banks Fortitude Pro

Owners and reviewers widely praise the Astor + Banks Fortitude Pro for its scratch-resistant coating, thin and compact 38.5mm case, and versatile dial options. The layered finishing with polished chamfers and comfortable bracelet are frequently highlighted as strong points, contributing to its wearability. One owner notes good timekeeping, while a reviewer states the Miyota 9015 movement is adjusted to +/-10 seconds per day. A potential drawback mentioned is the date numeral appearing in half shadow due to anti-magnetic shielding, and one owner considers the bracelet clasp dated. Overall, owners and reviewers rate the Astor + Banks Fortitude Pro highly for its durable construction and thoughtful design at its price point.

Grand Seiko STGK031

Grand Seiko STGK031 owners widely praise its subtle, light pink dial that shifts to appear white or silver depending on lighting, its refined 30mm case size, and its simple elegance. Some find the 30mm sizing perfect for wearability, with one owner noting it is ideal for those who find 38mm watches too large. The Zaratsu polishing is also a noted strength. However, the Calibre 9S27 movement has a 50-hour power reserve and an accuracy range of +8 to -3 seconds per day, which some consider modest for the price. On balance, owners and reviewers rate the Grand Seiko STGK031 highly for its versatile dial and refined 30mm case.

From video reviewers

The 50-hour power reserve of the Calibre 9S27 movement is a shared strength. The 36mm lug-to-lug measurement is a weakness. Reviewers disagreed on the premium feel of the polished stainless steel case and bracelet compared to Zaratsu polishing.

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