Side by side

Citizen Promaster Diver EcozillavsTissot Seastar 1000 GMT

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

Promaster Diver Ecozilla
CitizenPromaster Diver Ecozilla
MSRP $469
Seastar 1000 GMT
TissotSeastar 1000 GMT
MSRP $575

At a glance

11 of 29 specs differ
Diameter
Promaster Diver Ecozilla48mm
Seastar 1000 GMT40mm
Power Reserve
Promaster Diver Ecozilla40h
Seastar 1000 GMT40h
Water Resistance
Promaster Diver Ecozilla300m
Seastar 1000 GMT300m
MSRP
Promaster Diver Ecozilla$469
Seastar 1000 GMT$575

Full specifications

Case

4 specs
Diameter
48mm
40mm
Thickness
12mm
11.77mm
Lug-to-Lug
46mm
40mm
Lug Width
29mm
20mm

Crystal & Dial

4 specs
Crystal
Mineral
Sapphire
AR Coating
Underside
Inner
Indices
Applied
Indexes
Lume
None
Super-LumiNova ®

Movement

2 specs
Caliber
B873
Type
Solar
Quartz

Pricing

1 specs
MSRP
$469
$575

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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 Ecozilla

The Citizen Promaster Diver Ecozilla is widely praised for its reassuringly solid, overbuilt feel and excellent value, especially when on sale. Owners note that the second hand hits its markers well, with one owner reporting all nine of their Citizen watches exhibit proper alignment. The watch features robust 300m water resistance and vibrant lume. However, its substantial 48mm size and 18.6mm thickness create a massive wrist presence, and some owners question its wearability due to its chunky dimensions, with one noting the stainless steel version weighs a ton. On balance, owners and reviewers rate the Citizen Promaster Diver Ecozilla highly for its robust build and excellent value proposition.

Tissot Seastar 1000 GMT

Owners widely praise the Tissot Seastar 1000 GMT for its sapphire crystal, 300m water resistance, and GMT complication, with one owner expressing deep satisfaction. A point of contention for some is that Swiss quartz movements may exhibit second-hand misalignment with markers, unlike certain Japanese quartz movements. On balance, owners rate the Tissot Seastar 1000 GMT highly for its robust features and value.

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