Seiko Prospex SeavsUgly Watch Co 300mD

Add a watch
Prospex Sea
SeikoProspex Sea

MSRP $595

See the full watch
Buy from Seiko Used on eBay
300mD
Ugly Watch Co300mD

Ref. 300md-red

See the full watch
Buy from Ugly Watch Co Used on eBay

lug2lug doesn't sell watches. Buy links open the brand's or seller's own site. Some links are affiliate links: lug2lug may earn a commission at no extra cost to you. Disclosures

Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Seiko Prospex Sea at true scale

Prospex Sea

Ugly Watch Co 300mD at true scale

300mD

Diameter

41.7mm

42mm

Lug-to-Lug

49.5mm

n/a

Thickness

12.3mm

lowest

13.5mm

Water Resistance

200m

300m

highest

Power Reserve

41h

n/a

MSRP

$595

n/a

Movement

Seiko 4R35

Seiko NH35

Case

5 specs
Diameter
41.7mm
42mm
Thickness
12.3mm
13.5mm
Lug-to-Lug
49.5mm
n/a
Lug Width
20mm
n/a
Water Resistance
200m
300m

Crystal & Dial

3 specs
Crystal
Hardlex
Sapphire
Dial Color
n/a
Red
Lume
LumiBrite on hands, index(es) and bezel
None

Movement

3 specs
Caliber
Seiko 4R35
Seiko NH35
Power Reserve
41h
n/a
Jewels
23
0

Pricing

1 specs
MSRP
$595
n/a
Keep your wishlist and collection together in the appExplore the app
Get the appGet the app

Similar watches

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

All alternatives to the Prospex Sea →All alternatives to the 300mD →
Explore the full catalog
DiscussionNot started

Also compared

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

Spinnaker Croft PioneervsUgly Watch Co 300mDSerket Watch Co Reef MarianavsSeiko Prospex SeaErebus Watches TitanvsSeiko Prospex Sea
Edit this comparisonMore diver comparisonsBest Diver Watches Under $500Explore more 40-43mm watches