Case Diameter: 42.3 mm

Case Thickness: 14.5 mm

Case Material: Stainless Steel

Dial Color: Silver White

Dial Shape: Round

Dial Material: Not specified

Crystal Material: Sapphire Crystal

Crown Material: Stainless Steel

Strap Color: Black

Strap Material: Alligator Leather

Clasp Type: Folding Clasp

Clasp Material: Stainless Steel

Case Back: Display Case Back

Weight: Not specified

Water Resistance: 30 Meters

ZF Factory’s replica Portuguese 7-Day uses a Seagull five-day power reserve movement as its core base. After three iterative generations of upgrades, the product has evolved into the current definitive V4 version. The display case back of the V4 model features black gears, which serve as the most distinguishable identifier of this iteration. You may compare the V2 and V3 case back structures in the attached images; the rotor design of the V4 model is also altered compared to its predecessors.

Genuine Portuguese 7-Day watches also have two factory generations. Pieces sold at official boutiques before late 2015 were fitted with the V2/V3-style case back architecture. The brand later upgraded the movement bridges, prompting ZF to launch the matching V4 replica version accordingly. Both types of case backs can be found on authentic retail watches officially released by IWC.

Beyond the upgraded movement display, the folding clasp of the V4 Portuguese 7-Day has also been revised to match the updated design of genuine watches. The ZF Portuguese 7-Day enjoys immense popularity across the market thanks to its perfectly replicated open-work movement alongside fully identical functions to the original watch. The small seconds subdial on the right delivers an authentic power reserve indicator, and the sapphire crystal is coated with anti-reflective blue film. The Portuguese 7-Day is available in a wide array of color schemes; browse our best-selling color combinations below.