Side by side

Tissot Seastar 1000 ChronographvsUnimatic Modello Uno UT1-BSTN Collab Diver

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

What people say

Owners + reviewers, side by side

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

Tissot Seastar 1000 Chronograph

Owners widely praise the Tissot Seastar 1000 Chronograph for its captivating blue dial, excellent case finishing, and legible matte dial, with some noting its Powermatic 80 movement offers remarkable accuracy averaging -0.6 seconds per day and an 80-hour power reserve. The ceramic bezel is also frequently highlighted as exceptionally well-done, and the bracelet is described as surprisingly strong. However, multiple owners report issues including bezel looseness, paint chipping, flooding, a broken crown, and a protruding case back causing discomfort. Some find the watch too large, with one owner noting unfinished case sides and a crown pattern that digs into fingers. Overall, owners rate the Tissot Seastar 1000 Chronograph highly for its impressive finishing and value, despite a notable number of reports concerning durability and comfort issues.

Unimatic Modello Uno UT1-BSTN Collab Diver

The Unimatic Modello Uno UT1-BSTN Collab Diver is widely praised for its robust, tool-watch design and utilitarian features, including MIL-STD-810H shock resistance and individually pressure-tested cases. Reviewers highlight the sandblasted 41.5mm steel case with its masculine, monolithic feel and bold lugs, as well as the legible dial. The Seiko VH31 mecaquartz movement provides quartz accuracy with a sweeping seconds hand, and the watch boasts 300m water resistance. One reviewer notes a lack of contrast between the luminous indexes and the dial, and another points out the crystal's lack of AR-coating as a hint at its price point. Overall, reviewers rate the Unimatic Modello Uno UT1-BSTN Collab Diver highly for its rugged build and practical, entry-level tool watch appeal.

At a glance

12 of 29 specs differ
Diameter
Seastar 1000 Chronograph45.5mm
Modello Uno UT1-BSTN Collab Diver41.5mm
Power Reserve
Seastar 1000 Chronograph
Modello Uno UT1-BSTN Collab Diver
Water Resistance
Seastar 1000 Chronograph300m
Modello Uno UT1-BSTN Collab Diver300m
MSRP
Seastar 1000 Chronograph$650
Modello Uno UT1-BSTN Collab Diver$680

Full specifications

Case

6 specs
Category
Diver
Diameter
45.5mm
41.5mm
Thickness
12.82mm
0mm
Lug-to-Lug
45.5mm
0mm
Lug Width
22mm
0mm
Material
Stainless Steel

Crystal & Dial

4 specs
Crystal
Sapphire
AR Coating
Yes
Indices
Indexes
Lume
Super-LumiNova ®
None

Movement

1 specs
Caliber
Seiko VH31 (quartz)

Pricing

1 specs
MSRP
$650
$680
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