TEN TO SEN Ref. TTSW-GT-SSBL, black dial, full set, unworn, JDM

This TEN TO SEN is a beautiful example of a modern Japanese microbrand watch that focuses on clear design, good proportions, and high-quality materials rather than loudness. The TEN TO SEN brand explicitly advertises on its official website that it consistently manufactures watches in Japan and creates products that do not lose their appeal over time. At the same time, the brand emphasizes a very everyday-oriented approach: a watch should be comfortable to wear, not snag on sleeves, not be too big, too thick, or too heavy, and make telling time a natural and beautiful experience. 

This particular model implements this philosophy very convincingly. The design is extremely minimalist but by no means boring. The deep black dial creates a strong contrast with the applied silver-colored indices and the faceted hands. Additionally, the date window is neatly integrated at 3 o'clock, not disturbing the clean lines of the dial. The inscription in the lower dial area is particularly characteristic: "Connecting dots and there will be a line." This phrase fits the TEN TO SEN brand very well, as its name means "dot and line" in Japanese and evokes associations with reduction, order, and graphic clarity. The watch thus appears modern, calm, and very thoughtfully designed.

The understated logo at 12 o'clock and on the crown depicts a stylized tsubaki (camellia) blossom – a deliberately chosen Japanese motif traditionally representing subtle beauty. This also aligns with TEN TO SEN's philosophy: those who look closely find more than is visible at first glance. The brand originated as an in-house project of SPB Co., Ltd. (operator of the Japanese watch retail chain 時計倉庫TOKIA) and was launched in 2021 via the crowdfunding platform Makuake. Each watch is assembled by in-house watchmakers in their own repair workshop – which enables the comparatively low price without compromising on material quality.

The case is also well-executed. Its flowing form with robust lugs and a solid stainless steel bracelet gives the watch a tangible presence without appearing cluttered. The fact that the watch is still completely wrapped in protective film further underscores the practically new condition of this piece. Together with the original steel bracelet and the four included spare links, this is a particularly attractive full set.

Regarding the brand itself, it's interesting that TEN TO SEN is not merely a generic private label without a recognizable profile. The official website showcases a small, design-oriented Japanese brand with a focus on durability, wearability, and Japanese manufacturing. Various dial colors are offered, including black, blue, white, gray, pink, and pistachio green. The official product page for the black model lists key features such as an automatic Miyota 9015 movement, sapphire crystal, 10 bar water resistance, 316 stainless steel, and a two-year warranty. The official case size stated there is 44 mm length x 38 mm width x 10.7 mm height with a weight of 134 g. Our own measurement of the present example differs slightly, which is not uncommon for real measurements depending on the method and bracelet shortening.

The present example comes as a Full Set with box, hangtag, warranty card, and four spare links. The warranty card lists the model number as TTSW-GT-SSBL and the purchase date as September 5, 2024. The official product page states a two-year warranty for the black version, which matches the included card.

Overall, this is a modern Japanese microbrand watch with a very clean design language, a high-quality technical foundation, and a strong degree of originality. For buyers looking for an unworn Japanese watch outside the big mainstream brands, this model is particularly interesting.

Technical Data

• Brand: TEN TO SEN
  
• Model Number: TTSW-GT-SSBL
  
• Manufacturer / Brand Operator: SPB Co., Ltd., Nagoya, Japan
  
• Movement: Automatic
  
• Caliber according to official product page: Miyota 9015
  
• Case Material: 316 Stainless Steel
  
• Glass: Sapphire Crystal
  
• Dial: Black
  
• Display: Hour, Minute, Central Second, Date
  
• Water Resistance: 10 bar / 100 m
  
• Diameter without Crown: 38 mm
  
• Lug-to-Lug: 45.7 mm
  
• Height: 10.9 mm
  
• Lug Width: 20 mm
  
• Strap: Original Stainless Steel Bracelet
  
• Weight including original bracelet: 119 g
  
• Additional: Four spare links
  
• Scope of delivery: Full Set with Box, Hangtag, Warranty Card, and Spare Links
  
• Purchase Date according to Warranty Card: September 5, 2024
  
• Condition: Absolutely as new, unworn, still completely film-wrapped

Warranty (used)
This is a used item. The limitation period for defect claims (statutory warranty) is 12 months from delivery.