IWC IWC - IW3505-07 Ingenieur SL Automatic Stainless Steel / Yellow Gold / Black / Bracelet

Ingenieur SL Automatic Stainless Steel / Yellow Gold / Black / Bracelet

REF. IW3505-07

Case

MaterialYellow Gold, Stainless Steel

Diameter34 mm

ShapeRound

CrystalSapphire

Case backClosed

Water resistance120 m

Dial

ColourBlack

IndexesStick / Dot Hands: Stick

HandsStick

Movement

Caliber375

Typeautomatic

Reserve42 h

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In Context

At 34 mm it is classically proportioned: the size a dress watch was understood to be for most of the twentieth century, and small enough to sit under a cuff. At 8.6 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. 120 m is genuine swimming resistance — more than the shape of this watch suggests it would need.

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.

IW3505-07 is one of 12 executions of the IW3505 base reference. Underneath they are the same watch; what separates this one is a black dial and a yellow gold, stainless steel case. Introduced in 1983.

The IW3505 family

IW3505-07 is one of 12 variants sharing the IW3505 base reference — same watch underneath, different dial, bezel, or bracelet execution. Browse the others: