Side by side

Casio GST-B400vsUnimatic Modello Uno UT1 Toolwatch Diver (41.5mm)

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

Add a watch
GST-B400
CasioGST-B400
MSRP $350
See the full GST-B400
Modello Uno UT1 Toolwatch Diver (41.5mm)
UnimaticModello Uno UT1 Toolwatch Diver (41.5mm)
MSRP $620
See the full Modello Uno UT1 Toolwatch Diver (41.5mm)
Buy from Casio ↗
Buy used on eBay ↗
Buy from Unimatic ↗
Buy used on eBay ↗

Some links are affiliate links — lug2lug may earn a commission at no extra cost to you. Disclosures

At a glance

13 of 29 specs differ
Diameter
GST-B40049.6mm
Modello Uno UT1 Toolwatch Diver (41.5mm)41.5mm
Power Reserve
GST-B400—
Modello Uno UT1 Toolwatch Diver (41.5mm)—
Water Resistance
GST-B400200m
Modello Uno UT1 Toolwatch Diver (41.5mm)300m
MSRP
GST-B400$350
Modello Uno UT1 Toolwatch Diver (41.5mm)$620

Full specifications

Case

8 specs
Category
Sport
—
Diameter
49.6mm
41.5mm
Thickness
12.9mm
0mm
Lug-to-Lug
46.6mm
0mm
Lug Width
—
0mm
Material
Resin / Stainless steel
—
Finish
—
—
Water Resistance
200m
300m

Crystal & Dial

2 specs
Crystal
Mineral
—
AR Coating
No
—

Movement

2 specs
Caliber
—
Seiko VH31
Power Reserve
—
0h

Pricing

1 specs
MSRP
$350
$620
Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Citizen Promaster Diver Ecozilla
Citizen

Promaster Diver Ecozilla

9 watches · 16 variantsPromaster
48mm·Solar·300m WR
$469MSRP
—Used
Farr + Swit The Wayfinder
Farr + Switmicro
Wayfinder

The Wayfinder

42mm·Quartz·100m WR
$399MSRP
—Used
AV86 1956 Marine
AV86micro

1956 Marine

18 variantsSeries
41mm·Quartz·200m WR
—MSRP
—Used
Tissot Savonnette
Tissot

Savonnette

2 watches · 4 variantsSavonnette
48.5mm·Quartz
$425MSRP
—Used
Filippo Loreti Watches BOGO: The Punisher
Filippo Loreti Watchesmicro

BOGO: The Punisher

2 variantsSeries
42mm·Mecaquartz·200m WR
$399MSRP
—Used
Bulova Icon Precisionist Men's Black Dial Stainless Steel Watch
Bulova

Icon Precisionist Men's Black Dial Stainless Steel Watch

Ref. 96B175.html
46mm·Quartz·300m WR
—MSRP
—Used
Hemel HF1 Snelway
Hemelmicro
Snelway

HF1 Snelway

6 variantsSnelway
40mm·Quartz·100m WR
$200MSRP
—Used
Cooper Watches "Vietnam" / Platoon US Special Forces UDT watch - Type D sterile Royal Navy dial
Cooper Watchesmicro
Vietnam

"Vietnam" / Platoon US Special Forces UDT watch - Type D sterile Royal Navy dial

2 variantsSeries
43mm·Quartz·300m WR
$127MSRP
—Used
All alternatives to the GST-B400 →All alternatives to the Modello Uno UT1 Toolwatch Diver (41.5mm) →
Explore the full catalog
DiscussionNot started
Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.

BERNY Men's Skeleton Mechanical WatchvsUnimatic Modello Uno UT1 Toolwatch Diver (41.5mm)Jorg Gray Watches JG9600vsUnimatic Modello Uno UT1 Toolwatch Diver (41.5mm)BERNY Men's Skeleton Mechanical WatchvsUnimatic Modello Uno UT1 Toolwatch Diver (41.5mm)Jorg Gray Watches JG8300vsUnimatic Modello Uno UT1 Toolwatch Diver (41.5mm)Casio GST-B400vsUnimatic Modello Uno UT1-BSTN Collab DiverCasio GST-B400vsUnimatic Modello Quattro UT4 Toolwatch Time Only (40mm)
Edit this comparisonAdd another watch