Pilot Custom 845 Fountain Pen in Prussian Blue

Pilot proudly introduces an elegant new expression of its esteemed Custom 845 collection: Prussian Blue. Known in Japanese as ?? (Kon-jo), this sophisticated hue expands the line beyond its iconic Black and Vermillion finishes, offering a refined yet striking alternative for discerning writers.

Meticulously crafted using traditional Urushi lacquer techniques, each Custom 845 is built through the careful application of multiple layers of natural lacquer. Every layer is applied, cured, and polished by hand to achieve a deep, luminous finish. Creating Prussian Blue is particularly demanding—this rich, vibrant shade requires expert blending of pigments with Urushi lacquer, resulting in remarkable depth, warmth, and subtle tonal variation under changing light.

Designed to suit a variety of writing styles, the Custom 845 is available in four nib sizes including Fine, Medium, Broad, and Double Broad — each crafted in a beautifully appointed two-toned 18k gold nib. Complemented by luxurious gold accents, this fountain pen delivers exceptional balance, smoothness, and precision. It seamlessly unites artistry with performance, making it both a treasured writing companion and a distinguished heirloom.

Pilot Custom 845 Fountain Pen in Prussian Blue Specifications

• Body Material: Hand-applied Urushi lacquer (Prussian Blue / ??) over ebonite
• Cap: Urushi lacquer over ebonite; Screw-Cap; Gold Clip
• Trim: Gold Trim
• Nib: 18 karat 2-toned Gold (size #15)
• Nib Sizes: Fine (F), Medium (M), Broad (B), Double Broad (BB)
• Pen Length Closed: 5.76 in / 146.3 mm
• Pen Length Open, Cap Off: 5.22 in / 132.6 mm
• Pen Length Posted: 6.53 in / 165.9 mm
• Diameter (Barrel): 0.52 in / 13.2 mm
• Total Weight: 0.95 oz / 27.0 g
• Filling System: Pilot cartridge/converter system (black ink cartridge included) with CON-70 converter
• Made in Japan
• Presented in an Elegant Black Gift Box