Modello Uno U1S-NPB

Ref. U1S-NPB

Case diameter: 40 mm; Manufacturer spec
Lug-to-lug: 49 mm; Measured in a published review
Thickness: 13.6 mm; Measured in a published review
Lug width: 22 mm; Measured in a published review

Your wristIdeal fit

Wrist flat: 55.1 mmLug-to-lug: 49 mm

How the Modello Uno U1S-NPB wears

Its lugs reach 9 mm past the 40 mm case, more than the 7 mm typical across the almanac, so it wears larger than its diameter suggests.

On our fit model it sits best on wrists from 6.75" to 8.25" (17.1–21.0 cm); below 6.75" the lugs start to reach the edge of the wrist.

At 13.6 mm thick it is thicker than 73% of the 124 other dive watches we've measured, so expect it to sit tall on the wrist.

Its 22 mm lug width is one of the most common strap sizes; 42 other watches here share it, so aftermarket straps are easy to find.

Will the Modello Uno U1S-NPB fit your wrist?

With a 49 mm lug-to-lug, here is how it wears across common wrist sizes. We estimate the flat top of each wrist from its circumference; measure yours for a closer answer in the fit finder.

Wrist	Flat width (est.)	Fit
6"	47.2 mm	Lugs overhang
6.5"	51.2 mm	Snug, lugs near the edge
7"	55.1 mm	Ideal fit
7.5"	59.1 mm	Ideal fit
8"	63 mm	Ideal fit

Specifications

Reference: U1S-NPB
Collection: Modello Uno
Status: In production
Introduced: 2026
Case material: 316L stainless steel, brushed
Crystal: double-domed sapphire
Water resistance: 300 m
Bezel: unidirectional 120-click, moss anodized aluminium insert
Dial: satin moss green
Strap / bracelet: military deer leather two-piece strap
Style: Dive

Movement

Caliber: Sellita SW200-1
Type: automatic
Power reserve: 38 hours
Frequency: 28,800 vph (4 Hz)
Jewels: 26
Accuracy: -5/+12 s/day (Christopher Ward tolerance)

6 other watches use the Sellita SW200-1

Takes 22 mm straps. See other 22 mm watches and straps.

Watches that wear the same size

Other watches within 1.5 mm of its lug-to-lug.

Same 22 mm lug width

All 22 mm watches

These take the same straps as the Modello Uno U1S-NPB.