The Wristwatch Field Guide

Unimatic Modello Uno U1S-T-SE (x Sease)

The Unimatic Modello Uno U1S-T-SE (x Sease) is a current-production diver watch with a grey grade 5 case, finished with sandblasted. It measures 41.5 mm across, 62 g, and is water resistant to 300 m. Inside is the Sellita SW200-1 automatic movement, with 38 h power reserve. Complications: Time only. Brand origin: Italy.

Titanium and ceramic diver watchesTitaniumDivers
Reference
–
Type
Diver
Price
– · LE 60 (2024), sold out
Case diameter
41.5 mm
Thickness
–
Lug-to-lug
–
Water resistance
300 m
Weight
62 g
Origin
Italy
Movement
Automatic
Caliber
Sellita SW200-1
Power reserve
38 h
Complications
Time only
Material
Titanium
Grade / type
Grade 5
Colour
Grey
Hardness
–
Construction
–
Surface treatment
Sandblasted
Caseback
Titanium
Nickel-free
Not verified (bracelet, strap, or clasp hardware not confirmed)
Bracelet / strap
TPU strap
Matching bracelet
–
Crystal
Double-domed sapphire, AR coated
Display back
No
Dial
Foliage green
Lume
Super-LumiNova C1
Availability
Offered
Status
x Sease Sailing; limited edition of 60 (2024), sold out
High confidence Verified Jul 2026 Source: Unimatic Maker / listing ↗
Facts are free to cite with a link.
See it in the interactive guide

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More titanium and ceramic watches from Unimatic

Unimatic Modello Uno U1S-T-MPUnimaticModello Uno U1S-T-MP$1,17841.5 mm11.25 mm thick62 gDiverUnimatic Modello Due U2S-T-MPUnimaticModello Due U2S-T-MP$89938.0 mm58 gFieldUnimatic Modello Uno U1S-T-PD6-B ProDiverUnimaticModello Uno U1S-T-PD6-B ProDiver$1,90041.5 mm14.4 mm thick63 gDiverUnimatic Modello Uno U1S-TGMTUnimaticModello Uno U1S-TGMT$1,94940.0 mm57 gDiverUnimatic Modello Quattro U4S-T-LBUnimaticModello Quattro U4S-T-LB$1,66040.0 mm65 gFieldUnimatic Modello Due U2S-T-WUnimaticModello Due U2S-T-W$1,39238.0 mmField

Frequently asked questions

What is the case material of the Unimatic Modello Uno U1S-T-SE (x Sease)?

The Unimatic Modello Uno U1S-T-SE (x Sease) has a grey grade 5 case with a titanium caseback. This is confirmed against the maker spec.

What size is the Unimatic Modello Uno U1S-T-SE (x Sease)?

It is 41.5 mm in diameter, and water resistant to 300 m.

How much does the Unimatic Modello Uno U1S-T-SE (x Sease) weigh?

About 62 g.

How much does the Unimatic Modello Uno U1S-T-SE (x Sease) cost, and is it available?

It is current-production; the guide does not list a price for it.

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