Side by side

Seiko Prospex SeavsUndone Basecamp Cali Blue

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 Prospex Sea

Owners and reviewers widely praise the Seiko Prospex Sea for its excellent value, robust build, and superior lume, with many noting its comfortable wearability and faithful design recreations. Some owners report the watch can feel big, thick, and heavy on smaller wrists, while others find the sizing perfect. The bezel action is frequently highlighted as smooth and precise, often exceeding that of less expensive models. On balance, owners and reviewers rate the Seiko Prospex Sea highly for its impressive finishing and value proposition.

Undone Basecamp Cali Blue

The Undone Basecamp Cali Blue is praised for its attractive, vintage-feeling California dial and subtle texture, with owners appreciating the 40mm case fit and customization options. Reviewers note the desirable, affordable timepiece features a textured Cali dial and 100m water resistance. Some drawbacks mentioned include the lack of a date function and a 15mm thickness, exacerbated by a chunky strap. The watch is powered by a Seiko NH35 automatic movement and features a friction bezel. Overall, owners and reviewers rate the Undone Basecamp Cali Blue highly for its unique dial design and value.

At a glance

13 of 29 specs differ
Diameter
Prospex Sea41.7mm
Basecamp Cali Blue40mm
Power Reserve
Prospex Sea41h
Basecamp Cali Blue
Water Resistance
Prospex Sea200m
Basecamp Cali Blue100m
MSRP
Prospex Sea$595
Basecamp Cali Blue$325

Full specifications

Case

6 specs
Category
Diver
Diameter
41.7mm
40mm
Thickness
12.3mm
0mm
Lug-to-Lug
49.5mm
0mm
Lug Width
20mm
0mm
Water Resistance
200m
100m

Crystal & Dial

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

Movement

3 specs
Caliber
Seiko 4R35
Seiko NH35
Power Reserve
41h
0h
Jewels
23
0

Pricing

1 specs
MSRP
$595
$325
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