Norton - Sirio - Automatico Miyota 8215 - Acciaio - Bracciale Integrato - Fondello a Vista - 40 mm - 10 ATM - NW.SIR.SLB (Silver) - Men - 2026






Over six years of professional experience in watches with extensive collector network.
Catawiki Buyer Protection
Your payment’s safe with us until you receive your object.View details
Trustpilot 4.4 | 142824 reviews
Rated Excellent on Trustpilot.
Norton Sirio automatic watch, 40 mm stainless steel case with silver guilloché sunray dial, Miyota 8215 automatic movement, integrated stainless steel bracelet, water resistant to 10 ATM (100 m), with box, papers and 2‑year official warranty, reference NW.SIR.SLB, year 2026, new condition.
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 - Steel - Integrated Bracelet - Exhibition Case Back - 40 mm - 10 ATM
Automatic 40 mm watch in stainless steel with brushed and polished finishes, silver dial with guilloché work and sunray finish, Japanese automatic movement visible through the exhibition case back, anti-glare mineral glass, water resistance 10 ATM/100 m, integrated steel bracelet designed by Norton. New with box, papers and official 2-year warranty.
Sirio takes its name from the brightest star in the sky, and like that star it lives by light. The dial is built around a guilloché motif 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 hour markers and hands feature luminescent coating, and the printed minute track completes the dial with instrument-quality precision.
The case is 40 mm stainless steel, with alternating brushed and polished surfaces that define its sporty-elegant character. The screw-down case back houses a mineral glass window through which the Japanese automatic movement can be observed at work, with the rotor winding with every gesture.
The bracelet is stainless steel, custom-designed for this case, integrated into the profile of the lugs and finished with the same alternation of brushed and polished surfaces: not a modified bracelet, but part of the watch’s design. The silver dial is the brightest and most versatile version of the range: it changes with ambient light, from warm white to steel gray, and goes well with anything you wear.
MOVEMENT: Miyota 8215 automatic Made in Japan
CASE: stainless steel, brushed and polished finish, 40 mm
BEZEL: fixed stainless steel, beveled profile
DIAL: silver, guilloché linear with sunray finish, applied luminescent indices
HANDS: luminescent
GLASS: anti-reflective mineral
CASE BACK: screw-down steel with mineral glass window, movement visible
CROWN: screw-down stainless steel
WATER RESISTANCE: 10 ATM / 100 m
BRACELET: integrated stainless steel, Norton design, brushed and polished
BUCKLE: deployant stainless steel
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 - Steel - Integrated Bracelet - Exhibition Case Back - 40 mm - 10 ATM
Automatic 40 mm watch in stainless steel with brushed and polished finishes, silver dial with guilloché work and sunray finish, Japanese automatic movement visible through the exhibition case back, anti-glare mineral glass, water resistance 10 ATM/100 m, integrated steel bracelet designed by Norton. New with box, papers and official 2-year warranty.
Sirio takes its name from the brightest star in the sky, and like that star it lives by light. The dial is built around a guilloché motif 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 hour markers and hands feature luminescent coating, and the printed minute track completes the dial with instrument-quality precision.
The case is 40 mm stainless steel, with alternating brushed and polished surfaces that define its sporty-elegant character. The screw-down case back houses a mineral glass window through which the Japanese automatic movement can be observed at work, with the rotor winding with every gesture.
The bracelet is stainless steel, custom-designed for this case, integrated into the profile of the lugs and finished with the same alternation of brushed and polished surfaces: not a modified bracelet, but part of the watch’s design. The silver dial is the brightest and most versatile version of the range: it changes with ambient light, from warm white to steel gray, and goes well with anything you wear.
MOVEMENT: Miyota 8215 automatic Made in Japan
CASE: stainless steel, brushed and polished finish, 40 mm
BEZEL: fixed stainless steel, beveled profile
DIAL: silver, guilloché linear with sunray finish, applied luminescent indices
HANDS: luminescent
GLASS: anti-reflective mineral
CASE BACK: screw-down steel with mineral glass window, movement visible
CROWN: screw-down stainless steel
WATER RESISTANCE: 10 ATM / 100 m
BRACELET: integrated stainless steel, Norton design, brushed and polished
BUCKLE: deployant stainless steel
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.
