Side by side

Seiko 5KXvsUndone 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.

Seiko 5KX

Owners widely praise the Seiko 5 Sports SKX series for its strong lume and comfortable wearability, with many noting its compact feel due to a short lug-to-lug length. The NH36 movement's accuracy varies, with typical performance between +/-5 to 10 seconds per day, though some report better. A lack of screw-down crown and ISO certification are noted drawbacks for its water resistance. Some owners find the bracelet to be of cheaper construction with hollow links, and a few have reported quality control issues. The consensus is that the Seiko 5 Sports SKX series offers good value for its price, appealing to those who appreciate its tool-like nature and iconic lineage.

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

12 of 29 specs differ
Diameter
5KX42.5mm
Basecamp Gmt40mm
Power Reserve
5KX41h
Basecamp Gmt
Water Resistance
5KX100m
Basecamp Gmt100m
MSRP
5KX$350
Basecamp Gmt$480

Full specifications

Case

5 specs
Category
Diver
Diameter
42.5mm
40mm
Thickness
13.4mm
15mm
Lug-to-Lug
46mm
0mm
Lug Width
22mm
0mm

Crystal & Dial

3 specs
Crystal
Hardlex
Dial Color
Lume
LumiBrite on hands and index(es)
None

Movement

3 specs
Caliber
4R36
Seiko NH34
Power Reserve
41h
0h
Jewels
24
0

Pricing

1 specs
MSRP
$350
$480
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