IWC Portugieser IW3972-01

45mm · Platinum · Caliber 89801 · 30m

Portugieser Perpetual Calendar Digital Date-Month Edition "75th Anniversary" Platinum

Brand: IWC
Full reference: IW3972-01
Also written as: IW397201
Collection: Portugieser
Case diameter: 45mm
Case thickness: 16.5mm
Lug width: 22mm
Case material: Platinum
Crystal: Sapphire
Water resistance: 30m
Caliber: 89801
Dial color: Silver

Related references — same collection

Shared specifications help discovery; these links do not assert a predecessor or successor relationship.

IWC

Portugieser

IW3774-01

45mmPlatinum

IWC

Portugieser

IW3776-01

45mmPlatinum

IWC

Portugieser

IW3776-03

45mmPlatinum

IWC

Portugieser

IW377601

45mmPlatinum

Compare specifications

Specification	IW3972-01	IW3774-01	IW3776-01	IW3776-03	IW377601
Case diameter	45mm	45mm	45mm	45mm	45mm
Case material	Platinum	Platinum	Platinum	Platinum	Platinum
Water resistance	30m	30m	30m	30m	30m
Movement	—	—	—	—	Automatic
Caliber	89801	79091	79091	79091	79091
Power reserve	—	—	—	—	44 hours

Sources & record notes

Displayed specifications follow the most complete source record. Other source records are retained below; conflicting values are not silently combined. WatchBase.

WatchBase ↗ · 2026-09-22 11:52:08 JST

WatchBase · IWC IW3972-01

Original collection: Portugieser

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