Norton - Sirio - Automatico Miyota 8215 - PVD Nero - Quadrante Guilloché Sunray - Fondello a Vista - 40 mm - - NW.SIR.BK (Black) - Men - 2026






Over six years of professional experience in watches with extensive collector network.
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Norton Sirio automatic watch with Miyota 8215 movement, 40 mm black IP stainless steel case, black guilloché sunray dial, rubber strap, reference NW.SIR.BK, new with box, papers and a 2-year official warranty.
Description from the seller
Norton: over thirty years of Italian watchmaking, where artisanal tradition meets the precision of Japanese and Swiss movements.
In this auction we offer: Norton - Sirio - Automatic Miyota 8215 - Black PVD - Guilloché Sunray Dial - Exhibition Caseback - 40 mm - 10 ATM
Automatic 40 mm watch in stainless steel with black IP finish, brushed and polished, black dial with guilloché work and sunray finish, Japanese automatic movement visible through the exhibition caseback, anti-reflective mineral glass, water resistance 10 ATM/100 m, integrated rubber strap. New with box, manuals and official 2-year warranty.
Sirio takes its name from the brightest star in the sky, and like that it lives by light. The dial is built around a guilloché pattern of parallel lines beneath a sunray finish: light passes through it and changes tone with every wrist movement, from light to dark, never flat. The applied indices and hands feature luminescent treatment, and the printed minute track completes the dial with instrument-grade precision.
The case is 40 mm stainless steel with black IP finish, brushed and polished, and drilled lugs that allow easy strap changes. The screw-down caseback sports a window in mineral glass from which the Japanese automatic movement can be observed at work, with the rotor winding at every gesture.
The total black is the more decisive version: case, dial and indices in the same dark tone, where the guilloché is read not as color but as relief, and reveals itself only when light slices it from the side.
MOVEMENT: Miyota 8215 automatic Made in Japan
CASE: stainless steel with black IP finish, brushed and polished, 40 mm
BEZEL: fixed stainless steel with black IP finish, beveled profile
DIAL: black, linear guilloché with sunray finish, applied luminescent indices
HANDs: luminescent
GLASS: anti-reflective mineral
CASEBACK: screw-down steel with window in mineral glass, movement in view
CROWN: screw-down stainless steel with black IP finish
WATER RESISTANCE: 10 ATM / 100 m
STRAP: integrated rubber
BUCKLE: pin buckle 20 mm in steel with brushed black IP finish
New watch, never worn. Original packaging with manuals and official 2-year warranty. Return accepted only if protective films have not been removed and the watch and its box are in the same condition as when shipped. Designed in Italy.
Seller's Story
Norton: over thirty years of Italian watchmaking, where artisanal tradition meets the precision of Japanese and Swiss movements.
In this auction we offer: Norton - Sirio - Automatic Miyota 8215 - Black PVD - Guilloché Sunray Dial - Exhibition Caseback - 40 mm - 10 ATM
Automatic 40 mm watch in stainless steel with black IP finish, brushed and polished, black dial with guilloché work and sunray finish, Japanese automatic movement visible through the exhibition caseback, anti-reflective mineral glass, water resistance 10 ATM/100 m, integrated rubber strap. New with box, manuals and official 2-year warranty.
Sirio takes its name from the brightest star in the sky, and like that it lives by light. The dial is built around a guilloché pattern of parallel lines beneath a sunray finish: light passes through it and changes tone with every wrist movement, from light to dark, never flat. The applied indices and hands feature luminescent treatment, and the printed minute track completes the dial with instrument-grade precision.
The case is 40 mm stainless steel with black IP finish, brushed and polished, and drilled lugs that allow easy strap changes. The screw-down caseback sports a window in mineral glass from which the Japanese automatic movement can be observed at work, with the rotor winding at every gesture.
The total black is the more decisive version: case, dial and indices in the same dark tone, where the guilloché is read not as color but as relief, and reveals itself only when light slices it from the side.
MOVEMENT: Miyota 8215 automatic Made in Japan
CASE: stainless steel with black IP finish, brushed and polished, 40 mm
BEZEL: fixed stainless steel with black IP finish, beveled profile
DIAL: black, linear guilloché with sunray finish, applied luminescent indices
HANDs: luminescent
GLASS: anti-reflective mineral
CASEBACK: screw-down steel with window in mineral glass, movement in view
CROWN: screw-down stainless steel with black IP finish
WATER RESISTANCE: 10 ATM / 100 m
STRAP: integrated rubber
BUCKLE: pin buckle 20 mm in steel with brushed black IP finish
New watch, never worn. Original packaging with manuals and official 2-year warranty. Return accepted only if protective films have not been removed and the watch and its box are in the same condition as when shipped. Designed in Italy.
