Yellow Gold

Da Vinci Perpetual Calendar Chronograph 3750 — Yellow Gold

Undated

The launch metal and most common version; low case numbers (e.g. 836) date from 1986.

Early yellow gold Da Vinci perpetual calendar chronograph ref. 3750 with white dial, moon phase at 12, four-digit year window and articulated lugs, shown with its papers. · Photo: Antiquorum · © Antiquorum, used with permission · Source: https://catalog.antiquorum.swiss/en/lots/iwc-ref-iw3750-da-vinci-lot-386-476

Identifying details

Perpetual calendar
Calendar that accounts for month lengths and leap years.
Moon phase

Variants of 3750

Switch between variants of this reference. The current variant is highlighted.
Variant	Production
Yellow GoldCurrent	Undated
Yellow Gold · Black Lacquer Dial	Undated
White Gold	Undated
Stainless Steel	Undated

Case & movement

Reference: 3750
Production: Undated
Case material: 18k yellow gold
Case diameter: 39 mm
Movement: Automatic
Date: Yes
Caliber: IWC 79061

Dial, bezel & hands

Unknown attributes are left out rather than guessed.

Movement

IWC 79061

Valjoux 7750 automatic chronograph carrying Kurt Klaus’s perpetual-calendar module: all indications, including moon phase and four-digit year, advance together and are set with the crown alone. Programmed to 2499 with replaceable century slides. The early Da Vinci .