Editor’s Note
This article announces the opening of Sinn DEPOT Hamamatsu, a unique experiential concept shop dedicated to the German watch brand. It is presented as the only such location in Japan’s Shizuoka Prefecture.

Tokai Watch & Jewelry Co., Ltd. (Headquarters: Nagoya City, Aichi Prefecture; President and CEO: Tsuguhide Ishiguro), a comprehensive company supporting customer beauty from watch and jewelry wholesale/retail to aesthetic salon operation, will open a concept shop ‘Sinn DEPOT Hamamatsu’ handling products of the German mechanical watch brand “Sinn,” for which it serves as an official agent, on Saturday, June 8, 2024.
Headquartered in Frankfurt, Germany, Sinn, true to its German company name “Sinn Spezialuhren” (Sinn Special Watches), is a brand known for its “mission timers” and “pilot watches”—measuring instruments beloved by many professionals—featuring unique technologies incorporated from other fields.
The company operates a direct sales watch store in Hamamatsu City, Shizuoka Prefecture, and has been handling Sinn watches as the prefecture’s sole official agent since 2012. The new ‘Sinn DEPOT Hamamatsu’ storefront is designed with an image similar to Sinn’s directly operated concept shops in Germany, showcasing the brand’s unique worldview. It will be a specialty store and concept corner displaying almost all current models. Sinn DEPOT boasts one of Japan’s largest product lineups, selling not only a wide variety of Sinn watches but also parts like bracelets and leather straps, as well as original Sinn novelty goods.
Store Name: Sinn DEPOT Hamamatsu
Address: 1981-3 Suwa, Tennocho, Chuo-ku, Hamamatsu City, Shizuoka Prefecture 435-0052, AEON MALL Hamamatsushino 1st Floor
Business Hours: 10:00–21:00
Regular Holiday: None (follows facility schedule)
TEL: 053-411-3507
Official Website: https://sinn-depot.jp/

✔️ One of Japan’s largest selections of models on display, consistently selling numerous watches from Sinn’s diverse lineup developed for pilots, divers, special forces, firefighters, finance professionals, etc.
✔️ Sale of accessories, offering a wide variety of bracelets and leather straps for all products, not just watches.
✔️ Sale of original Sinn goods, including watch cases and related items beyond watches and straps.
✔️ Hosting events for purchasers, such as “Sinn Technical Seminars” where technicians explain with demonstrations, and exclusive events for Sinn watch buyers held irregularly.
✔️ After-sales service, accepting Sinn watch overhauls and repairs.
Period: From Saturday, June 8, 2024, to Saturday, August 31
Condition: Customers who purchase a Sinn wristwatch at Sinn DEPOT Hamamatsu during the fair period
Content: Gift of a travel watch case (while supplies last)
A convenient travel case with a carabiner that can store one wristwatch.

Since its founding in 1961, Sinn has been developing “watches solely for use,” prioritizing visibility, the essence of a watch. Furthermore, it has realized numerous proprietary technologies not seen in other brands. Its watches are highly trusted by professionals such as pilots, divers, and Germany’s GSG9 special forces, proving their robustness, durability, and high practicality in harsh environments.
Product Name: 556
Specifications: 20 ATM water resistance / Power reserve: 38 hours / Magnetic resistance: 4,800 A/m
Price: 297,000 JPY (tax included)
A simple design focused solely on the essential functions of a watch: hours, minutes, seconds, and date display. Manufactured based on DIN standards (German Industrial Standards) for magnetic and water resistance. The simple bar indices offer a timeless design for long-term use, an ideal piece for daily wear that suits any style.
Product Name: U1
Specifications: 100 ATM water resistance / Power reserve: 38 hours / Case: U-boat steel / Magnetic resistance: 4,800 A/m
Price: 572,000 JPY (tax included)
A diver’s watch with excellent resistance to external influences even under harsh conditions. U-boat steel not only offers superior seawater resistance but is also anti-magnetic without retaining residual magnetism and highly resistant to cracking.
Product Name: 103 B SA AUTO
Specifications: 20 ATM water resistance / Power reserve: 48 hours / Magnetic resistance: 4,800 A/m

Price: 605,000 JPY (tax included)
A practical chronograph with a simple dial boasting excellent visibility and timekeeping/chronograph accuracy, a model that truly represents Sinn’s fundamental spirit. The bidirectional rotating black bezel follows the tradition of the Model 155, officially adopted by the German Air Force as a chronograph in the 1960s.