Side by side

Pinion Pure BronzevsSeiko Prospex Sea

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

Pure Bronze
PinionPure Bronze
MSRP $1,715
Prospex Sea
SeikoProspex Sea
MSRP $625
What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Pinion Pure Bronze

The Pinion Pure Bronze is lauded for its refreshing design, featuring a beautiful layered dial with applied numerals and luminous indexes. Reviewers praise its satisfying manual-winding action from the Unitas 6498 movement, which offers a 45-hour power reserve. One reviewer suggested a satin finish for the crown to match the case back and buckle. Overall, reviewers rate the Pinion Pure Bronze highly for its unique bronze case that patinates over time and its clear, subtly finished dial.

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.

At a glance

14 of 29 specs differ
Diameter
Pure Bronze38mm
Prospex Sea43.8mm
Power Reserve
Pure Bronze45h
Prospex Sea41h
Water Resistance
Pure Bronze100m
Prospex Sea200m
MSRP
Pure Bronze$1,715
Prospex Sea$625

Full specifications

Case

7 specs
Category
Dress
Diver
Diameter
38mm
43.8mm
Thickness
11mm
12.8mm
Lug-to-Lug
44mm
48.7mm
Lug Width
20mm
22mm
Material
Bronze
Stainless Steel
Water Resistance
100m
200m

Crystal & Dial

2 specs
AR Coating
Yes
Anti-reflective coating on inner surface
Lume
Super-LumiNova
LumiBrite on hands, index(es) and bezel

Movement

4 specs
Caliber
Sellita SW261-1
4R35
Type
Manual
Automatic
Power Reserve
45h
41h
Jewels
25
23

Pricing

1 specs
MSRP
$1,715
$625
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