Side by side

Seestern Sub 300 V4vsTissot Seastar 1000 Powermatic 80 GMT

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

Sub 300 V4
SeesternSub 300 V4
MSRP $10
Seastar 1000 Powermatic 80 GMT
TissotSeastar 1000 Powermatic 80 GMT
MSRP $1,375

At a glance

19 of 29 specs differ
Diameter
Sub 300 V442mm
Seastar 1000 Powermatic 80 GMT46mm
Power Reserve
Sub 300 V441h
Seastar 1000 Powermatic 80 GMT80h
Water Resistance
Sub 300 V4200m
Seastar 1000 Powermatic 80 GMT300m
MSRP
Sub 300 V4$10
Seastar 1000 Powermatic 80 GMT$1,375

Full specifications

Case

8 specs
Category
Diver
GMT
Diameter
42mm
46mm
Thickness
13mm
15.4mm
Lug Width
20mm
22mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed + Sandblasted
Brushed and polished
Water Resistance
200m
300m
Caseback
Solid screw-down
Solid

Crystal & Dial

5 specs
Crystal Shape
Flat
Domed
AR Coating
Underside
Yes
Dial Color
Orange
Black
Indices
Applied
Indexes
Lume
Japan Lume (blue glow)
Super-LumiNova ®

Movement

5 specs
Caliber
Seiko NH35A
Powermatic 80
Beat Rate
21,600 vph
28,800 vph
Power Reserve
41h
80h
Jewels
24
25
Complications
GMT, Date
None

Pricing

1 specs
MSRP
$10
$1,375

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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.

Tissot Seastar 1000 Powermatic 80 GMT

Owners widely praise the Tissot Seastar 1000 Powermatic 80 GMT for its excellent build quality, smooth winding feel, and the reliable Powermatic 80 movement providing an 80-hour power reserve. Reviewers highlight its remarkable value under $700, comfortable wearability, and appealing case/dial ratio. Some owners note the bezel's functionality for tracking a second time zone and the need to adjust the hour hand for date setting, a characteristic of its "True" GMT function. The rubber strap is considered comparable to those found on significantly more expensive watches. However, concerns exist regarding the movement's serviceability due to potential plastic components and reliance on Swatch Group service centers. Some find the bezel font and dial spacing unappealing, while others question the mineral glass bezel insert as a cost-cutting measure compared to ceramic. Accuracy is generally reported as good, though not COSC certified, and lume intensity is described as average by one owner.

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