[5 Best Watch Articles of the Week]From former Goldman Sachs Kei Tanaka’s favorite watches, Seiko Prospex× JAMSTEC, and other hot topics are available! |Pen Online

From Pen Online’s watch article, we have announced the best 5 popular articles of the week!

No. 5[Minerva New Watch]A Japan-limited model that carves the five-storied pagoda of Toji Temple. A quiet tribute to Kyoto by a long-established manufacturer
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Heritage Pittagore Small Seconds Japan Limited Edition 14 / Hand-wound, 18K white gold case, case diameter 39mm, power reserve approx. 80 hours, alligator strap, water resistance to 5 atm, limited to 14 pieces in Japan. ¥4,260,850

Minerva, a subsidiary of Montblanc, has released a new 14-piece Japan-limited album “Heritage Pitagore Small Seconds Japan Limited Edition 14”, which pays homage to the two sacred places in Kyoto.

This neat 18KWG 39mm case with a salmon dial emits a deep orange color reminiscent of the Senbon Torii gate of Fushimi Inari Taisha in the dark.

In addition, the balance holder of the in-house movement peeking out from the back cover is elaborately laser engraved with the five-storied pagoda of Toji Temple, a World Heritage Site. The tortoise shell pattern on the invisible strap lining and the limited number “14” derived from the silver ratio are all special timepieces that quietly and beautifully combine Swiss watchmaking techniques and Japanese aesthetics.

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Caseback.

No. 4 Swiss-born On× Longines. The pride of Swiss design through the latest high-tech shoes and retro dive watches[Shoes and Watches Vol.9]
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Watch ¥541,200 / Longines (TEL: 03-6254-7350) Sneakers ¥23,100 / on (On Japan TEL: 050-3196-4189) Jacket ¥55,000, Pants ¥47,300 / Both Graph Paper (Graph Paper Tokyo TEL: 03-6381-6171)

“Shoes” and “watches” are the cornerstones of style——。 Think about the best match between the two. This time, we will combine ON and Longines’ masterpieces with over-specs that overcome harsh environments and hide them in urban elegance.

No. 3[King Seiko’s latest work]A new model wearing a titanium case is now available for “Banak”, which has fans of yach!
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The lineup includes three new models using titanium material in the “Banak” series. From the left, “the quiet horizon of twilight”, “the structural beauty of the inorganic and urban expressway”, and “the gust of wind when a car drives through the night of Tokyo”. Both expressed the scene of Tokyo in the eyes of the driver.

From King Seiko’s “Banak” series, three new titanium models that have evolved into modern and sporty have appeared.

The biggest feature is that the use of full titanium in the case and bracelet reduces the weight by about 40% compared to the previous one. It is equipped with a one-push three-fold middle fastener, providing both a comfortable attachment and a hold. The dial was inspired by Tokyo’s cityscape and the speed of the highway, and was renovated with a dynamic design that combines radial and horizontal patterns.

Inside, it is equipped with a high-precision movement “Caliber 8L45” that boasts a power reserve of approximately 72 hours and divers’ level robustness. You can also enjoy the beautiful wavy pattern from the see-through back, and it is a timepiece that embodies the “now” of Tokyo.

No. 2[Seiko Prospex×JAMSTEC]A limited edition model of the Marine Master that embodies the cold beauty of the Arctic Ocean in the “Ice Sea Dial” is now available.
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Two new works will be added to Seiko’s “Prospex Marine Master”.

Seiko “Prospex Marine Master” will release two new models, a limited edition model and a regular model in collaboration with JAMSTEC (Japan Agency for Marine-Earth Science and Technology), in July 2026.

This model inherits the design of the 1968 model and is equipped with a new movement “Caliber 8L45”. It boasts a power reserve of 72 hours and a water resistance of 300m for air submersion, and is equipped with a newly developed adjuster that can be fine-tuned in 8 levels of about 2mm each to enhance practicality.

The JAMSTEC model, which is limited to 1,000 pieces worldwide, features a beautiful blue three-dimensional dial inspired by the Arctic research vessel “Mirai II” carving through the ice sea. The regular machine, on the other hand, has a black dial with a matte pear finish for high legibility. It is the ultimate diver who combines Japan’s passion for the sea with innovative technology. 

No. 1[5 of Tanakakei’s favorite watches are unveiled for the first time! ]Jaeger-LeCoultre from IWC to Garmin. Former Goldman Sachs investor’s aesthetic eye to remove the royal road
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Tanakakei ● Born in Yokohama City in 1982. An investor who worked at Goldman Sachs Securities for 17 years and served as co-head of the investment division in Japan. His book “People up to 100 million, people from 100 million” won the overall grand prize of the “Readers’ Choice Business Book Grand Prix 2026”. He wakes up at 3:45 a.m. every morning and is also an athlete who makes running and triathlon his daily routine.

Former Goldman Sachs investor Kei Tanaka. His watch journey speaks volumes about his philosophy of life.

Mr. Tanaka, who is in his 20s, dared to avoid the royal brand and chose Jaeger-LeCoultre and IWC. The criteria for determining “authenticity” such as history and craftsmanship, rather than relying on popularity or status, overlap with an outstanding aesthetic eye as an investor.

However, now that his lifestyle has changed to a competition-oriented one, Garmin keeps time with his arms 365 days a year. It can be said that it is a sign of a spiritual change that has led to the release of attachment to material wealth and the importance of a sincere way of life without embellishment.

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