{"product_id":"seiko-time-sonar-7015-6010","title":"Seiko Time Sonar 7015-6010","description":"\u003cp\u003eThe rivalry between Suwa Seikosha and Daini Seikosha is proof that a little internal pressure can unlock serious creativity. In the 1960s, Daini, or Kameido, was often viewed as the more conservative arm of Seiko, but the rise of the 5 Sports and SpeedTimer lines marked a shift. As competition intensified, so did experimentation, and with it came some of the brand's most distinctive chronographs. The idea that Daini's chronographs were inferior to Suwa's doesn't hold up, and if anything, Daini was often the bolder of the two.\u003c\/p\u003e\n\n\u003cp\u003eThe Seiko Time Sonar Ref. 7015-6010, introduced in 1976, feels like one of the final, fully realized expressions of that chronograph chapter: Inspired by submarine sonar displays, it features a semi-transparent dial that reveals the calendar disk beneath, creating depth and motion rarely seen in vintage chronographs.\u003c\/p\u003e\n\n\u003cp\u003eBeyond its transparency, the translucent orange dial is carefully composed. Slim white hour markers keep it light, while a black minute track and angled tachymeter ring frame the design with structure. Bold black segments at 3 and 9 o'clock organize the branding and day-date, giving it an instrument-panel feel. White hands with floating black centers remain crisp, and the vivid green chronograph seconds hand cuts across the orange field: If that isn't sonar in motion, it's hard to call it anything else. The smoked display case back reveals Daini's proprietary flyback Cal.7015A, something Daini attempted first worldwide.\u003c\/p\u003e\n\n\u003cp\u003eIf you've been following for a while, you might remember they originally come in bracelet like one we sold a while back, and this one is a very rare rubber strap variant which works so well on it. While Seiko revisited the aesthetic of the Time Sonar in 2022 with the Kosuke Kawamura collaboration models Seiko SRPJ41 and Seiko SRPJ43, as well as the recently announced SBSA323, nothing quite matches the originality of the 7015-6010.\u003c\/p\u003e\n\n\u003cp\u003eThe watch currently works flawlessly and will be sold as-is. Please let us know if you wish to service it.\u003c\/p\u003e\n\n\u003cp\u003eShips from Tokyo, Japan.\u003c\/p\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCondition report\u003c\/strong\u003e\u003cbr\u003eThis watch is in outstanding condition, showcasing its untouched, factory-original lines with no visible scratches, only light marks from storage.\u003cbr\u003e\u003cbr\u003eThe dial remains immaculate, free from any signs of deterioration. The original dial and hands are vibrant and intact, with no indications of decay.\u003cbr\u003e\u003cbr\u003eThe caseback is overall beautiful, with some storage scratches.\u003cbr\u003e\u003cbr\u003eThe rubber straps have slight discoloration due to natural blooming, but they are soft with no visible cracks.\u003cbr\u003e\u003cbr\u003eThis example comes with its original tag.\u003c\/p\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003cbr\u003eBRAND: Seiko\u003cbr\u003eMODEL: Time Sonar\u003cbr\u003eREFERENCE: 7015-6010\u003cbr\u003eDIAL: Original transparent orange\u003cbr\u003eCASE MATERIAL: Stainless Steel\u003cbr\u003eCASE DIMENSIONS: 38 x 43 mm diameter, 14mm Height, 18mm Lug Width\u003cbr\u003eCRYSTAL: Mineral glass\u003cbr\u003eCASE BACK: Screw-in Stainless Steel\u003cbr\u003eMOVEMENT: Cal.7015A (Self-Winding)\u003cbr\u003eManufacturing date: 1976\u003cbr\u003eService History: Unknown, ±10s\/day\u003cbr\u003eBracelet\/Strap: Original signed rubber straps.\u003c\/p\u003e","brand":"THE TOKEI CLUB","offers":[{"title":"Default","offer_id":47127403724975,"sku":null,"price":0.0,"currency_code":"JPY","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/1450\/7695\/files\/file_c7e7e834-1237-4651-a333-ce2088046eb6.jpg?v=1782817663","url":"https:\/\/thetokeiclub.jp\/products\/seiko-time-sonar-7015-6010","provider":"THE TOKEI CLUB","version":"1.0","type":"link"}