Side by side

Citizen Promaster DivervsSeiko Prospex Sea

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

Promaster Diver
CitizenPromaster Diver
MSRP $319
Prospex Sea
SeikoProspex Sea
MSRP $795

At a glance

11 of 29 specs differ
Diameter
Promaster Diver36.5mm
Prospex Sea34mm
Power Reserve
Promaster Diver40h
Prospex Sea40h
Water Resistance
Promaster Diver200m
Prospex Sea200m
MSRP
Promaster Diver$319
Prospex Sea$795

Full specifications

Case

4 specs
Diameter
36.5mm
34mm
Thickness
12mm
8.7mm
Lug-to-Lug
46mm
40.8mm
Lug Width
20mm
16mm

Crystal & Dial

4 specs
Crystal
Mineral
Sapphire
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
White
Black
Lume
None
LumiBrite on hands and index(es)

Movement

2 specs
Caliber
E168
6N01
Type
Solar
Quartz

Pricing

1 specs
MSRP
$319
$795

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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.

Citizen Promaster Diver

Owners widely praise the Citizen Promaster Diver for its lightweight titanium construction, comfortable wear, and excellent specifications for its price, with one owner noting handsome dial construction from recycled materials and accuracy of +1 second in 7 days. Some owners find its brushed finish unremarkable, its bezel action mediocre, and its rotor loud, while one example showed a slightly misaligned bezel and chapter ring. On balance, owners rate the Citizen Promaster Diver highly for its lightweight titanium build and strong value proposition.

Seiko Prospex Sea

Owners widely praise the Seiko Prospex Sea for its excellent value, robust build, and superb lume, with many appreciating its comfortable wearability due to its case shape and lug-to-lug distance. Reviewers consistently highlight its impressive finishing and classic dive watch design, often noting the bright LumiBrite lume. Some owners find the watch to be large, thick, and heavy, while others consider it the perfect size, indicating a split opinion on wearability for smaller wrists. The power reserve from some movements is noted as less than newer variants, and the clasp quality receives mixed feedback. Overall, owners and reviewers rate the Seiko Prospex Sea highly for its exceptional finishing and value proposition in the dive watch market.

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