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The Index — Vintage watches, decoded.References, dials and variants up to 2000

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IWC Portofino IW3731-07 (aka: IW373107) · The Index

Brands
IWC
Portofino
IW3731-07 (aka: IW373107)

Portofino IW3731-07 (aka: IW373107)

1988–1998

Portofino Chronograph MecaQuartz Stainless Steel / White / Calf — photo from WatchBase · Photo: WatchBase · © WatchBase, used with permission · Source: https://watchbase.com/iwc/portofino/iw3731-07

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Variants

No variants documented yet.

Reference specifications

Brand: IWC
Model: Portofino
Reference: IW3731-07 (aka: IW373107)
Production: 1988–1998
Case diameter: 35 mm
Water resistance: 30 m
Crystal: Sapphire

Specs shared by all variants. Variant pages show where a variant differs.

All Portofino references

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