Compiled from 11 sources; we haven't tested this product ourselves yet. How we research
Quick answer
The LAMY safari JETSTREAM inside is the LAMY safari ballpoint fitted with Mitsubishi Pencil's Jetstream ink, in a black 0.7 mm (F) refill called the M17. Mitsubishi Pencil launched it in Japan on January 29, 2025 at ¥3,630 (about US$23) including tax. The M17 also comes in 0.5 mm (EF) and fits LAMY pens that take the M16.
On this page10 sections
The safari JETSTREAM inside in blue, drawn to scale from LAMY Japan's 138 mm.
$$$$20–75 per pen (multi-packs divided by the count)
Colors
vistaclear body
Special editions
Ink
black, Jetstream M17 F, 0.7 mm; the only ink sold
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Notes on these facts
Made by C. Josef Lamy GmbH, Heidelberg (part of Mitsubishi Pencil Co., Ltd.). Made in Germany and Japan: Today Life Stationery (California) lists it as made in Germany / Japan without saying which part comes from where; The Gentleman Stationer says the M17 refill is made in Japan. LAMY's Japanese product page gives no country of origin for this pen, only LAMY's general Made in Germany panel. Source. Price: example listing. Released: Japanese launch date in Mitsubishi Pencil's press release of January 8, 2025; LAMY's February 27, 2026 release says it launched on the Japanese market. We found no launch outside Japan.
Colors: names per LAMY Japan, checked October 26, 2026. Seven colors per LAMY Japan's shop and Mitsubishi Pencil's launch release: five standard safari colors and two limited ones (dark dusk and sunset, both sold out at LAMY Japan on October 26, 2026). All hold the same black M17 F refill. Tints were sampled from Mitsubishi Pencil's launch photo. Tints are representative, not measured. Shops stock different colors.
Price bands are typical US retail, checked October 2026. Conversions to US dollars are approximate, at October 2026 rates (US$1 = ¥158 = ₩1,330 = NT$32.5 = CN¥6.7 = SEK 9.9 = DKK 6.7 = ₺49.6 = C$1.41 = A$1.43 = CZK 21.7; €1 = US$1.12; £1 = US$1.32; CHF 1 = US$1.21).
Key takeaways
Mitsubishi Pencil launched it in Japan on January 29, 2025 as the first product of its partnership with LAMY, which it bought in 2024.
It ships with the Jetstream M17 F (0.7 mm) black refill; an M17 EF (0.5 mm) is sold separately at ¥1,100 (about US$7) in Japan.
LAMY says the M17 is compatible with its M16 ballpoint refill, so it fits existing LAMY ballpoints too.
LAMY Japan lists it at 10 × 10 × 138 mm and 14 g, the same as the regular safari ballpoint, in five standard and two limited colors.
LAMY sells it only in Japan; on October 26, 2026 US shops Today Life Stationery and Simple Paper listed it at US$29.99 and US$40.
What is the LAMY safari JETSTREAM inside?
It’s a LAMY safari ballpoint with Mitsubishi Pencil’s Jetstream ink inside, in a black 0.7 mm refill called the M17. Mitsubishi Pencil, which bought LAMY in 2024, launched it in Japan on January 29, 2025 and called it the first step of the partnership. Our story on the LAMY deal explains why the Tokyo company bought the Heidelberg pen maker.
The body is the familiar safari: glossy ASA plastic, a molded grip and the wire clip. The difference is the refill. Jetstream is the low-viscosity oil-based ink of the uni-ball Jetstream RT, and LAMY says it gives black lines about twice as dense as conventional oil-based ink.
LAMY safari JETSTREAM inside specs
Spec
Value
Brand
LAMY (C. Josef Lamy GmbH, part of Mitsubishi Pencil)
Type
Click ballpoint, oil-based Jetstream ink
Refill
Jetstream M17 F (0.7 mm), black
Spare refills
M17 EF (0.5 mm) and M17 F
Size
10 × 10 × 138 mm (5.4 in), per LAMY Japan
Weight
14 g
Body
Glossy ASA plastic, metal wire clip
Launch price (Japan)
¥3,630 (about US$23) with tax
LAMY Japan price
¥3,850 (about US$24) on October 26, 2026
Launched
January 29, 2025 (Japan)
Color
LAMY item
EAN
vista
L712
4014519790648
blue
L714
4014519790679
red
L716
4014519790662
umbra
L717
4014519790686
yellow
L718
4014519790655
dark dusk (limited)
L7A9
4014519790624
sunset (limited)
L7B0
4014519790617
Which Jetstream refill is inside?
The Jetstream M17 F, a 0.7 mm black refill made for LAMY ballpoints. Mitsubishi Pencil also sells an M17 EF (0.5 mm); both list at ¥1,100 (about US$7) including tax in Japan, and both come only in black.
In the US, The Gentleman Stationer sells the M17 at US$10 and says it’s made in Japan, and Simple Paper sells the M17EF and M17F at US$15. The Gentleman Stationer’s own review says the M17 improves on the standard M16 significantly.
Can you use a regular LAMY M16 refill?
LAMY says the M17 is compatible with the M16 and fits existing LAMY ballpoints, so the two refills are interchangeable in size. The JETSTREAM inside also has the same 10 × 10 × 138 mm and 14 g that LAMY lists for the regular safari ballpoint, which ships with an M16.
LAMY doesn’t say directly that an M16 goes into the JETSTREAM inside. Because LAMY calls the two refills compatible, it should fit, but we haven’t tested it; that matters if you want blue ink, since the M17 comes only in black.
How is it different from a regular safari ballpoint?
Only the refill and the price: the body, size and weight match. LAMY’s US shop lists the regular safari ballpoint at US$20 with an M16 refill, and LAMY Japan lists it at ¥3,740 (about US$24), against ¥3,850 (about US$24) for the JETSTREAM inside.
Same Jetstream ink in two bodies of almost the same length.
If you already own a safari ballpoint, an M17 refill gets you the same writing for less. The fountain-pen LAMY safari shares the body design but takes T10 cartridges instead.
What colors does it come in?
Seven: vista, blue, red, umbra and yellow, plus the limited dark dusk and sunset. Mitsubishi Pencil’s release lists the first five as continuing colors and the last two as limited. LAMY Japan showed dark dusk and sunset as sold out on October 26, 2026.
Where can you buy it in the US?
Only from importers: LAMY’s US shop doesn’t list it. LAMY’s February 27, 2026 release says the pen launched on the Japanese market, and lamy.com carries it only on the Japanese site.
On October 26, 2026, Today Life Stationery in California listed it at US$29.99 with red, blue and umbra in stock, and Simple Paper in Florida listed it at US$40 with vista in stock. Both sit in our $$$ band ($20–75 per pen), above a regular safari ballpoint.
Frequently asked questions
What refill does the LAMY safari Jetstream use?
The Jetstream M17, a black oil-based ballpoint refill made by Mitsubishi Pencil for LAMY pens. The pen comes with the M17 F (0.7 mm), and the M17 EF (0.5 mm) is sold separately. Mitsubishi Pencil lists both at ¥1,100 (about US$7) in Japan.
Where to buy LAMY safari Jetstream inside in the US?
From importers, not LAMY USA. On October 26, 2026, Today Life Stationery in California listed it at US$29.99 with red, blue and umbra in stock, and Simple Paper in Florida at US$40 with vista in stock. eBay sellers in Japan also list it.
Does the M17 Jetstream refill fit other LAMY ballpoints?
Yes, says LAMY: the M17 is compatible with the M16 refill and can be used in existing LAMY ballpoints. Simple Paper names the safari, vista, studio and 2000 among the pens that take it.
Does LAMY sell the safari JETSTREAM inside in the US?
Not on October 26, 2026. LAMY's US shop lists the regular safari ballpoint with an M16 refill but not the JETSTREAM inside, which appears only on LAMY's Japanese site. LAMY's 2026 release describes it as launched on the Japanese market.
Is the LAMY safari JETSTREAM inside a gel pen?
No. It's an oil-based ballpoint. LAMY says Jetstream ink writes smoothly with low resistance, dries quickly and gives black lines about twice as dense as conventional oil-based ink.
How much does the LAMY safari JETSTREAM inside cost?
Mitsubishi Pencil's launch price in Japan was ¥3,630 (about US$23) including tax; LAMY's Japanese shop listed it at ¥3,850 (about US$24) on October 26, 2026. US importers charged US$29.99 to US$40, our $$$ band.
What colors does the LAMY safari JETSTREAM inside come in?
Seven: vista (clear), blue, red, umbra and yellow, plus the limited dark dusk and sunset, which LAMY Japan showed as sold out on October 26, 2026. Every color has black ink.
Who makes the LAMY safari JETSTREAM inside?
It's a LAMY-brand pen sold in Japan by Mitsubishi Pencil, LAMY's parent company since 2024. It puts Mitsubishi Pencil's Jetstream ink, in the M17 refill, into LAMY's safari ballpoint.
