Which is cheaper, the Seestern Sub 300 V4 or the Tudor Pelagos Ultra?

At MSRP the Seestern Sub 300 V4 is the cheaper of the two at $10, against $6,900 for the Tudor Pelagos Ultra — a $6,890 gap before any retailer discounting.

Which is bigger, the Seestern Sub 300 V4 or the Tudor Pelagos Ultra?

The Seestern Sub 300 V4 wears larger at 42mm versus 40mm for the Tudor Pelagos Ultra — a 2mm difference across the dial.

Which has better water resistance, the Seestern Sub 300 V4 or the Tudor Pelagos Ultra?

The Tudor Pelagos Ultra is rated to 1000m versus 200m for the Seestern Sub 300 V4.

Which has a longer power reserve, the Seestern Sub 300 V4 or the Tudor Pelagos Ultra?

The Tudor Pelagos Ultra carries a 65-hour power reserve against 41 hours on the Seestern Sub 300 V4.

What movement does the Seestern Sub 300 V4 run compared to the Tudor Pelagos Ultra?

Both watches run automatic movements — the Seestern Sub 300 V4 uses the Seiko NH35A and the Tudor Pelagos Ultra uses the MT5612-U.

Side by side

Seestern Sub 300 V4vsTudor Pelagos Ultra

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

Seestern Sub 300 V4

Sub 300 V4

MSRP $10

Tudor Pelagos Ultra

m2543c1a7nu-0001

MSRP $6,900

At a glance

19 of 29 specs differ

Diameter

Sub 300 V442mm

Pelagos Ultra40mm

Power Reserve

Sub 300 V441h

Pelagos Ultra65h

Water Resistance

Sub 300 V4200m

Pelagos Ultra1,000m

MSRP

Sub 300 V4$10

Pelagos Ultra$6,900

Full specifications

Case

6 specs

Diameter

42mm

40mm

Thickness

13mm

14.5mm

Lug Width

20mm

22mm

Material

316L Stainless Steel

Titanium

Finish

Brushed + Sandblasted

Satin

Water Resistance

200m

1000m

Crystal & Dial

5 specs

Crystal Shape

Flat

—

AR Coating

Underside

—

Dial Color

Orange

Black

Indices

Applied

—

Lume

Japan Lume (blue glow)

None

Movement

7 specs

Caliber

Seiko NH35A

MT5612-U

Beat Rate

21,600 vph

0 vph

Power Reserve

41h

65h

Jewels

Hacking

Yes

Hand-winding

Yes

Complications

GMT, Date

None

Pricing

1 specs

MSRP

$10

$6,900

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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.

WatchUSeek·3

Tudor Pelagos Ultra

The Tudor Pelagos Ultra is praised for its 1000 meters of water resistance, METAS-certified Calibre MT5612-U movement, and fully lumed dial and bezel. Reviewers highlight its titanium case and self-adjusting clasp as key features. The Tudor Pelagos Ultra is slightly larger at 43mm than some other models in the line but wears comfortably. Overall, owners and reviewers rate the Tudor Pelagos Ultra highly for its technical specifications and comfortable wearability as a flagship dive watch.

From video reviewers

The Tudor Pelagos Ultra's all-titanium construction provides a lightweight and durable case. One weakness is the lack of lume brightness. Reviewers disagree on whether the helium release valve is a notable feature or a drawback for a more streamlined design.

Hodinkee

Monochrome

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