TWSBI

Vac 700R

Fountain Pen

TWSBI Vac 700R

Filling System

Vacuum Filler

Condition

Mint / Near Mint

Estimated Value

$85 - $100 USD

Era

Modern Production

Pen Specifications

Pen Type

Fountain Pen

Filling System

Vacuum Filler

Body Material

Acrylic Resin

Trim Material

Rose Gold-Plated

Color / Pattern

Iris / Black Smoke / Pearlescent Swirl

Cap Type

Screw Cap

Clip Design

Simple curved spring clip with rose gold finish

Barrel Shape

Faceted / Diamond-faceted barrel

Nib Details

Nib Material

Steel

Nib Size

Medium

Nib Type

Standard

Nib Condition

Pristine, smooth tines alignment with rose gold coating intact

Dimensions

Size / Dimensions

Approximately 147 mm capped, 131 mm uncapped, 178 mm posted, with a 13.5 mm barrel diameter

Weight Estimate

31 grams, well-balanced when unposted

Heritage & Origin

Era / Period

Modern Production

Country of Origin

Taiwan

Rarity

Uncommon

Condition & Value

Overall Condition

Mint / Near Mint

Filling System Condition

Fully functional vacuum mechanism with reliable ink capacity and shut-off valve

Estimated Value

$85 - $100 USD

Special Features

Rose gold trim and distinctive faceted demonstrator-style acrylic body with a vacuum shut-off valve

Ink Recommendations

Waterman Inspired Blue, Iroshizuku Take-sumi, or any non-staining fountain pen safe ink

Care Recommendations

Flush with clean water periodically, lubricate the piston rod with silicone grease sparingly when needed

Interesting Facts

TWSBI pens are designed to be completely user-disassemblable, and come packaged with a wrench and silicone grease in the box

Overall Assessment

An exceptional value modern vacuum filler offering massive ink capacity, beautiful faceted aesthetics, and reliable daily writing performance

Identified on September 29, 2026