Side by side

Astor + Banks Fortitude ProvsSeiko Prospex Sea

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

Fortitude Pro
Astor + BanksFortitude Pro
MSRP $675
Prospex Sea
SeikoProspex Sea
MSRP $625

At a glance

13 of 29 specs differ
Diameter
Fortitude Pro38.5mm
Prospex Sea43.8mm
Power Reserve
Fortitude Pro40h
Prospex Sea41h
Water Resistance
Fortitude Pro200m
Prospex Sea200m
MSRP
Fortitude Pro$675
Prospex Sea$625

Full specifications

Case

6 specs
Category
Sport
Diver
Diameter
38.5mm
43.8mm
Thickness
11.9mm
12.8mm
Lug-to-Lug
45.5mm
48.7mm
Lug Width
20mm
22mm
Material
316L Stainless Steel
Stainless Steel

Crystal & Dial

3 specs
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Magenta
Black
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Miyota 9015
4R35
Power Reserve
40h
41h
Jewels
25
23

Pricing

1 specs
MSRP
$675
$625

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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.

Seiko Prospex Sea

The Seiko Prospex Sea is widely praised for its excellent value, solid build quality, and comfortable wearability, with many models featuring impressive lume and attractive dials. Owners and reviewers highlight the modern upgrades on classic designs, such as drilled lugs and reliable movements with hacking and hand-winding capabilities. Some models are noted for their refined case finishing and scratch resistance. Accuracy figures vary, with one owner reporting approximately 4 seconds fast per day, while others find the movements offer good performance for the price. Concerns raised by owners and reviewers include clasps that can feel generic or cheap, and lug widths that some find disproportionate to the case size on certain models. The thickness and weight of some Prospex Sea watches are also noted as substantial. The GMT function on specific models is considered secondary and difficult to read for true travel purposes.

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