Side by side

Seiko MonstervsTissot Seastar 2000

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

Monster
SeikoMonster
MSRP $550
Seastar 2000
TissotSeastar 2000
MSRP $1,275
What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Seiko Monster

Owners widely praise the Seiko Prospex Sea for its excellent value, robust build, and superb lume, with many noting its comfortable wearability. Reviewers consistently highlight its impressive finishing and classic dive watch design, often comparing it favorably to older models. Some owners find the size substantial, with one noting it as big, thick, and heavy on a 6.5-inch wrist, while others find it perfect. On balance, owners and reviewers rate the Seiko Prospex Sea highly for its exceptional value and robust, classic dive watch design.

Tissot Seastar 2000

Owners widely praise the Tissot Seastar 2000 for its impressive specifications at its price point, including an 80-hour power reserve, ISO 6425 certification, sapphire crystal, ceramic bezel, and 600m water resistance, with its dial quality and finishing considered superior for its class. The blue dial is frequently highlighted as particularly sharp and legible. However, the watch's substantial size and weight are consistent drawbacks; its 46mm width, 16.3mm thickness, and 52mm lug-to-lug dimension make it too large for some for everyday wear, with a rubber strap often recommended over the metal bracelet for comfort. A significant concern raised by multiple owners is the bezel's tendency to become loose and lose its click, with one reporting this on two separate watches. Accuracy figures vary, with one owner noting +1 second per day and another around +5 seconds per day.

From video reviewers

The 600m water resistance and 80-hour power reserve from the Powermatic 80 movement are consistently praised. Reviewers noted the substantial 44mm case size.

At a glance

15 of 29 specs differ
Diameter
Monster42.4mm
Seastar 200046mm
Power Reserve
Monster41h
Seastar 200080h
Water Resistance
Monster200m
Seastar 2000600m
MSRP
Monster$550
Seastar 2000$1,275

Full specifications

Case

5 specs
Diameter
42.4mm
46mm
Thickness
13.4mm
16.25mm
Lug-to-Lug
49.4mm
46mm
Lug Width
20mm
22mm
Water Resistance
200m
600m

Crystal & Dial

6 specs
Crystal
Hardlex
Sapphire
Crystal Shape
Flat
Domed
AR Coating
Inner
Yes
Dial Color
Black
Graded blue-black
Indices
Applied
Indexes
Lume
LumiBrite on hands, index(es) and bezel
Super-LumiNova ®

Movement

3 specs
Caliber
Seiko 4R36
Tissot Powermatic 80
Power Reserve
41h
80h
Jewels
24
25

Pricing

1 specs
MSRP
$550
$1,275
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