IWC · Grande Complication

Strap for Grande Complication 3770 Platinum / Silver / English / Bracelet

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width

20mm
Lug width20 mm
Case diameter42 mm
ReferenceIW9270-16 (aka: 9270-16, IW927016)
FamilyGrande Complication
MovementIWC caliber 79091 hours, minutes, small seconds | date, day, month, perpetual calendar, year indicator | Chronograph | moonphase | minute repeater
Year1993 - 2010
CasePlatinum

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the Grande Complication IW9270-16 (aka: 9270-16, IW927016)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Grande Complication IW9270-16 (aka: 9270-16, IW927016), seen from the bench

The IWC Grande Complication IW9270-16 mounts the IWC caliber 79091 with perpetual complications, chronograph and minute repeater. The watch features a complete perpetual calendar with indication of hours, minutes, small seconds, date, day, month and year. The functions include moon phases and minute repeater on demand.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only