Side by side

Citizen Promaster DivervsSeiko Prospex Rotocall

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

Promaster Diver
CitizenPromaster Diver
MSRP $319
Prospex Rotocall
SeikoProspex Rotocall
MSRP $550

At a glance

10 of 29 specs differ
Diameter
Promaster Diver36.5mm
Prospex Rotocall37mm
Power Reserve
Promaster Diver40h
Prospex Rotocall40h
Water Resistance
Promaster Diver200m
Prospex Rotocall100m
MSRP
Promaster Diver$319
Prospex Rotocall$550

Full specifications

Case

5 specs
Category
Diver
Sport
Diameter
36.5mm
37mm
Thickness
12mm
10.6mm
Lug-to-Lug
46mm
43.5mm
Water Resistance
200m
100m

Crystal & Dial

2 specs
Crystal
Mineral
Hardlex
Dial Color
White
Black

Movement

2 specs
Caliber
E168
A824
Type
Solar
Quartz

Pricing

1 specs
MSRP
$319
$550

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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 Rotocall

Owners widely praise the Seiko Prospex Rotocall for its charismatic retro design and comfortable 37mm size, with many appreciating its space-faring heritage. However, multiple sources criticize its price point, suggesting it is too high for an all-digital quartz watch with features like a stamped clasp, mineral crystal, and standard quartz movement. Some owners also note drawbacks such as a flimsy battery mount and split pin bracelet construction. On balance, owners and reviewers find the Seiko Prospex Rotocall visually appealing and a faithful re-release, but its value proposition is frequently questioned due to its price.

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