Side by side

Tissot Seastar 1000vsUndone Basecamp Gmt

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

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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.

Tissot Seastar 1000

Owners widely praise the Tissot Seastar 1000 for its value, solid build, and 300m water resistance, with reviewers highlighting its comfortable wearability and affordable price point for a sporty diver. Some owners find the bezel difficult to use and note glare from the crystal, while others criticize the lume and bracelet quality, with one owner describing the clasp as flimsy. Accuracy figures for the quartz models are excellent, and the Powermatic 80 movement is considered reliable. Overall, owners and reviewers rate the Tissot Seastar 1000 highly for its strong value proposition as a sporty, affordable everyday watch.

From video reviewers

The 80-hour power reserve from the Powermatic 80 movement is a significant strength. Reviewers did not reach a consensus on any weaknesses.

Undone Basecamp Gmt

The Undone Basecamp Gmt is widely praised for its vintage military aesthetic, comfortable 40mm case, and excellent value under $300, with reviewers noting its smooth, precise bidirectional bezel. Owners and reviewers consistently flag the Lexan polycarbonate crystal as a concern for long-term scratch resistance. The watch uses a Seiko NH34 automatic movement, and while its water resistance is listed as 50 meters, it is reportedly tested to 100 meters. One forum user points out that the orange arrow hand indicates the 12-hour time, not the 24-hour GMT function. Overall, owners and reviewers rate the Undone Basecamp Gmt highly for its versatile vintage design and strong value proposition.

At a glance

13 of 29 specs differ
Diameter
Seastar 100040mm
Basecamp Gmt40mm
Power Reserve
Seastar 100080h
Basecamp Gmt
Water Resistance
Seastar 1000300m
Basecamp Gmt100m
MSRP
Seastar 1000$875
Basecamp Gmt$480

Full specifications

Case

5 specs
Category
Diver
Thickness
12.48mm
15mm
Lug-to-Lug
40mm
0mm
Lug Width
20mm
0mm
Water Resistance
300m
100m

Crystal & Dial

5 specs
Crystal
Sapphire
AR Coating
Yes
Dial Color
Graded grey-black
Indices
Indexes
Lume
Super-LumiNova ®
None

Movement

2 specs
Caliber
Tissot Powermatic 80
Seiko NH34
Power Reserve
80h
0h

Pricing

1 specs
MSRP
$875
$480
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