IWC IWC - IW3565-07 Portofino Automatic Stainless Steel / Silver / Short Milanese
IWC IWC - IW3565-07 Portofino Automatic Stainless Steel / Silver / Short Milanese
IWC IWC - IW3565-07 Portofino Automatic Stainless Steel / Silver / Short Milanese
IWC

Portofino Automatic Stainless Steel / Silver / Short Milanese

REF. IW3565-07

1/10

Widely produced

Case

MaterialStainless Steel
Diameter40 mm
Lug width20 mm
ShapeRound
CrystalSapphire
Case backClosed
Water resistance30 m

Dial

ColourSilver
IndexesStick / Dot Hands: Feuille
HandsFeuille

Movement

Caliber35111
Typeautomatic
Reserve42 h
Explore caliber→

In Context

At 40 mm it is sized to the current mainstream: 40 mm is the median across every watch measured in this catalogue. At 9.5 mm thick it is about average for a modern wristwatch. The case back is closed, so the movement stays out of sight, and the sapphire crystal will resist everything short of deliberate abuse. Rated to 30 m, it is protected against rain and splashes and nothing beyond that.

The movement winds itself from the motion of your wrist. 42 hours of reserve carries it overnight, but not through a weekend in a drawer. At 28,800 vph the seconds hand advances 8 times a second.

IW3565-07 is one of 20 executions of the IW3565 base reference. Underneath they are the same watch; what separates this one is a silver dial and a stainless steel case. Introduced in 3565.

The IW3565 family

IW3565-07 is one of 20 variants sharing the IW3565 base reference — same watch underneath, different dial, bezel, or bracelet execution. Browse the others:

+ 11 more variants in this family.

Inside: Caliber 35111

Explore this caliber →

The 35111 is IWC's version of the Sellita SW300-1, built by Sellita to IWC's specification and the successor to the ETA-based 30110. It powers 70 watches in this library. The SW300 is Sellita's equivalent of the ETA 2892-A2, produced after ETA restricted supply to outside brands, and it matches the 2892's dimensions: 25.6 mm across and thin enough for a dress case. IWC's version runs at 28,800 vph with a 42-hour reserve and 25 jewels, carries a date, and is finished and regulated by IWC. The [2892 piece](/blog/the-eta-2892) explains the architecture both movements share. In the library it sits under 38 [Portofino](/brands/iwc/portofino) references, the Automatic 40 and Automatic 37, 20 [Pilot's Watches](/brands/iwc/pilot), the Mark XVIII of 2016 in its 40 mm case, 9 [Da Vinci](/brands/iwc/da-vinci) Automatic 36s of 2017 and 3 [Ingenieurs](/brands/iwc/ingenieur). The 40 mm case accounts for 37 references, the 37 mm for 16 and the 36 mm for 14. Seven are limited editions. The [30110](/calibers/iwc-30110) is the ETA-based movement it replaced, and the [32111](/calibers/iwc-32111) the in-house five-day movement that replaced it in turn.

69 other watches in the library run the IWC 35111.

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