Side by side

Seestern Sub 300 V4vsSeiko Prospex Sea Save the Ocean Special Edition

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

Sub 300 V4
SeesternSub 300 V4
MSRP $10

At a glance

15 of 29 specs differ
Diameter
Sub 300 V442mm
Prospex Sea Save the Ocean Special Edition43.8mm
Power Reserve
Sub 300 V441h
Prospex Sea Save the Ocean Special Edition41h
Water Resistance
Sub 300 V4200m
Prospex Sea Save the Ocean Special Edition200m
MSRP
Sub 300 V4$10
Prospex Sea Save the Ocean Special Edition$650

Full specifications

Case

7 specs
Diameter
42mm
43.8mm
Thickness
13mm
12.8mm
Lug-to-Lug
46mm
48.7mm
Lug Width
20mm
22mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed + Sandblasted
Brushed and polished
Caseback
Solid screw-down
Solid

Crystal & Dial

3 specs
AR Coating
Underside
Anti-reflective coating on inner surface
Dial Color
Orange
Black
Lume
Japan Lume (blue glow)
LumiBrite on hands, index(es) and bezel

Movement

4 specs
Caliber
Seiko NH35A
4R35
Beat Rate
21,600 vph
28,800 vph
Jewels
24
23
Complications
GMT, Date
None

Pricing

1 specs
MSRP
$10
$650

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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.

Seestern Sub 300 V4

Owners widely praise the Seestern Sub 300 V4 for its terrific fit and finish and surprising little touches at its $179 price, noting top-notch case, dial, bezel, and crystal. The bracelet is considered nice enough for the price point, and the watch is powered by the solid and reliable Seiko NH35 movement. Some owners report that the polished sides of the case show signs of wear. Overall, owners rate the Seestern Sub 300 V4 highly for its excellent case, dial, and bezel finishing at the price.

Seiko Prospex Sea Save the Ocean Special Edition

Owners widely praise the Seiko Prospex Sea Save the Ocean Special Edition for its exceptional and captivating dial designs, often described as a highlight that evokes ocean surfaces with unique textures and color gradients. The watch is frequently noted for its excellent value, with some reviewers comparing its aesthetics to much higher-priced brands. Owners report satisfactory lume and accurate timekeeping, with figures ranging from +5 seconds per day to more precise results. However, some owners and reviewers point to the bracelet clasp as a point of criticism, describing it as underwhelming or flimsy, and some find the watch to be top-heavy. There are also mentions of imperfect day/date wheel alignment and occasional bezel alignment issues on some models within the line. The Seiko Prospex Sea Save the Ocean Special Edition is available in various case sizes, with some owners questioning if certain dimensions are too bulky for daily wear.

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