Side by side

Spinnaker BradnervsUndone Basecamp Gmt

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

What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Spinnaker Bradner

Owners widely praise the Spinnaker Bradner's vibrant dials and excellent lume on indices and bezel, with one owner noting comfortable wearability on a 7-inch wrist. Reviewers flag imprecise finishing on the minute ring and an inner bezel crown that rotates too easily, while some owners report the internal rotating bezel does not stay in position. The watch features a Seiko NH35 movement with a 41-hour power reserve and is priced around $390-$430 USD. On balance, owners and reviewers find the Spinnaker Bradner to be a fun, affordable diver, with its vibrant dials and strong lume being key selling points.

From video reviewers

The Spinnaker Atlantic Blue's reliable Seiko NH35 automatic movement is a key strength. The watch's lume performance is somewhat lacking, which may be a trade-off for some buyers. Reviewers disagree on the watch's bezel action, with one reviewer praising it as smooth and precise, while the other two do not mention it.

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

10 of 29 specs differ
Diameter
Bradner42mm
Basecamp Gmt40mm
Power Reserve
Bradner
Basecamp Gmt
Water Resistance
Bradner180m
Basecamp Gmt100m
MSRP
Bradner$179
Basecamp Gmt$480

Full specifications

Case

6 specs
Category
Diver
Diameter
42mm
40mm
Lug-to-Lug
50mm
0mm
Lug Width
22mm
0mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
180m
100m

Crystal & Dial

2 specs
Crystal
Sapphire
Dial Color
Tidal Blue

Movement

1 specs
Caliber
Seiko NH35
Seiko NH34

Pricing

1 specs
MSRP
$179
$480
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