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

This TEN TO SEN is a very fine example of a modern Japanese microbrand watch that relies not on loudness, but on clean design, good proportions, and high-quality materials. On its official website, the TEN TO SEN brand explicitly advertises that its watches are consistently manufactured in Japan and that it 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 get in the way of a sleeve, not be too large, thick, or heavy, and make checking the time something natural and beautiful. 

This particular model implements this philosophy very convincingly. The design is decidedly minimalist, but by no means boring. The deep black dial provides a strong contrast to the applied silver-colored indices and the faceted hands. In addition, there is the neatly integrated date window at 3 o'clock, which does not disrupt the lines of the dial. Particularly characteristic is the lettering in the lower part of the dial: "Connecting dots and there will be a line." This phrase fits very well with the TEN TO SEN brand, whose name means "point and line" in Japanese and evokes associations of reduction, order, and graphic clarity. As a result, the watch appears modern, calm, and very consciously designed.

The subtle logo at 12 o'clock and on the crown features a stylized Tsubaki blossom (camellia) – a consciously chosen Japanese motif that traditionally stands for understated beauty. This, too, fits the TEN TO SEN philosophy: those who look closely will find more than meets the eye at first glance. The brand emerged 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. Every watch is assembled by the brand's own watchmakers in their in-house repair workshop – which enables the comparatively low price without compromising on material quality.

The case is also well-executed. The flowing form with the strong lugs and the solid stainless steel bracelet gives the watch a palpable presence without looking cluttered. The fact that the watch is still completely covered in its original protective film further underscores the practically mint condition of this specimen. Together with the original steel bracelet and the four included spare links, this is a particularly attractive full set.

Regarding the brand itself, it is interesting to note that TEN TO SEN is not a mere private label without a recognizable profile. The official website shows 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 cites as core features a Miyota 9015 automatic movement, sapphire crystal, 10 bar water resistance, 316 stainless steel, and a two-year warranty. The official case size specified there is 44 mm length x 38 mm width x 10.7 mm height with a weight of 134 g. Your own measurement of the present specimen differs slightly, which is not unusual for real-world measurements depending on the method and bracelet adjustment.

The specimen presented here comes as a full set with box, hangtag, warranty card, and four spare links. The model number TTSW-GT-SSBL and the date of purchase September 5, 2024 are noted on the warranty card. The official product page specifies a two-year warranty for the black version; this fits neatly with the provided card.

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

Technical specifications

• 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
  
• Crystal: 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
  
• Bracelet: Original stainless steel bracelet
  
• Weight including original bracelet: 119 g
  
• Extra: Four spare links
  
• Scope of delivery: Full set with box, hangtag, warranty card, and spare links
  
• Date of purchase according to warranty card: September 5, 2024
  
• Condition: Absolutely mint, unworn, still completely covered in protective film

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