Side by side

Oak & Oscar The AshlandvsSeiko Prospex Sea

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

The Ashland
Oak & OscarThe Ashland
MSRP $1,850
Prospex Sea
SeikoProspex Sea
MSRP $1,500

At a glance

16 of 29 specs differ
Diameter
The Ashland39.5mm
Prospex Sea43.5mm
Power Reserve
The Ashland42 hoursh
Prospex Sea70h
Water Resistance
The Ashland200m
Prospex Sea200m
MSRP
The Ashland$1,850
Prospex Sea$1,500

Full specifications

Case

6 specs
Category
Tool
Diver
Diameter
39.5mm
43.5mm
Thickness
12.4mm
13.3mm
Lug-to-Lug
46.8mm
51mm
Lug Width
20mm
22mm
Material
316L Stainless Steel
Titanium

Crystal & Dial

4 specs
Crystal Shape
Double-domed
Flat
AR Coating
Underside
Anti-reflective coating on inner surface
Dial Color
Green
Black
Lume
Super-LumiNova
LumiBrite on hands and index(es)

Movement

5 specs
Caliber
ETA 2892A2
6R35
Beat Rate
4 vph
28,800 vph
Power Reserve
42 hoursh
70h
Jewels
21
24
Complications
GMT, Chronograph, Date
None

Pricing

1 specs
MSRP
$1,850
$1,500

Follow this matchup

Get a note when Oak & Oscar The Ashland vs Seiko Prospex Sea gets more votes, a community discussion, or a price drop. No account needed.

What people say

Owners + reviewers, side by side

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

Oak & Oscar The Ashland

Owners widely appreciate Oak & Oscar The Ashland for its handsome design, symmetrical dial layout, and good timekeeping, with one owner reporting -4 seconds per day. Some pre-owned examples show minor marks on the lugs, bezel, and case, along with strap wear, consistent with normal use. On balance, owners value Oak & Oscar The Ashland for its attractive design and reliable performance.

Seiko Prospex Sea

Seiko Prospex Sea owners and reviewers praise its Marinemaster-style aesthetic, excellent case finishing, and impressive LumiBrite lume. The watch is powered by the 6R15 movement with a 50-hour power reserve and comes with both a steel bracelet and a silicone strap. Some owners find the Seiko Prospex Sea to be a great value and a suitable first "proper" watch, while others report it is uncomfortably big, thick, and heavy on smaller wrists. Reviewers note the GMT function is secondary with a less prominent scale, and the bezel's quieter clicks may not appeal to all. On balance, owners and reviewers rate the Seiko Prospex Sea highly for its classic design and finishing at its price point.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.