Side by side

CIGA Design BLUE PLANETvsSeiko Prospex Sea

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

BLUE PLANET
CIGA DesignBLUE PLANET
MSRP $999
Prospex Sea
SeikoProspex Sea
MSRP $625

At a glance

13 of 29 specs differ
Diameter
BLUE PLANET
Prospex Sea43.8mm
Power Reserve
BLUE PLANET
Prospex Sea41h
Water Resistance
BLUE PLANET30m
Prospex Sea200m
MSRP
BLUE PLANET$999
Prospex Sea$625

Full specifications

Case

6 specs
Category
Sport
Diver
Diameter
43.8mm
Thickness
12.8mm
Lug-to-Lug
48.7mm
Lug Width
22mm
Water Resistance
30m
200m

Crystal & Dial

3 specs
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Black
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
4R35
Power Reserve
41h
Jewels
23

Pricing

1 specs
MSRP
$999
$625

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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.

CIGA Design BLUE PLANET

The CIGA Design BLUE PLANET is widely praised for its unique visual impact and aesthetic, particularly its 3D rotating globe dial with raised topography. Owners and reviewers consistently highlight the high aesthetics and unique time-telling mechanism. However, legibility is a recurring concern, with multiple sources noting difficulty distinguishing familiar continents and small, unclear markers. The 46mm case, while lugless and surprisingly wearable for some due to its short lug-to-lug distance, is described as top-heavy and having substantial heft, especially in stainless steel. The automatic movement offers a 40-hour power reserve and an accuracy range of +30/-15 seconds per day. On balance, owners and reviewers appreciate the CIGA Design BLUE PLANET for its striking, unique dial design and aesthetic appeal, despite significant legibility challenges.

Seiko Prospex Sea

The Seiko Prospex Sea is widely praised for its excellent value, solid build quality, and comfortable wearability, with many models featuring impressive lume and attractive dials. Owners and reviewers highlight the modern upgrades on classic designs, such as drilled lugs and reliable movements with hacking and hand-winding capabilities. Some models are noted for their refined case finishing and scratch resistance. Accuracy figures vary, with one owner reporting approximately 4 seconds fast per day, while others find the movements offer good performance for the price. Concerns raised by owners and reviewers include clasps that can feel generic or cheap, and lug widths that some find disproportionate to the case size on certain models. The thickness and weight of some Prospex Sea watches are also noted as substantial. The GMT function on specific models is considered secondary and difficult to read for true travel purposes.

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