This elegant Seiko quartz watch , reference 2C21-0120, dates from June 1986 and embodies the minimalist design approach typical of Seiko quartz watches of the 1980s. Its extremely slim case and clean, silver dial with fine baton indices make it one of the most elegant dress watches of its time.
Technical data
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Reference: 2C21-0120
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Serial number: 66xxxxx (June 1986)
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Movement: Caliber 2C21 , quartz, battery (standard SR616SW)
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Case: Chrome-plated metal case, stainless steel base
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Diameter: approx. 31.7 mm
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Lug-to-lug: 37.7 mm
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Height: 5.7 mm
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Lug width: 18 mm
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Strap: Light NATO textile strap (total weight of watch with strap 28 g)
Design and background
The 2C21 series exemplifies Seiko's focus on precision, reliability, and slim design in the 1980s. Following the worldwide success of its first quartz watches in the 1970s, Seiko shifted its focus to elegant, everyday models with clean lines.
This watch follows the Japanese "Grammar of Design" philosophy , developed by Taro Tanaka in the late 1960s: sharp edges, reflective surfaces, and perfect legibility. The result is a purist timepiece that, despite its simplicity, offers the highest technical precision.
Historical context
Seiko's introduction of quartz technology in 1969 with the legendary Astron 35SQ revolutionized the entire watch industry. In the following years, Seiko perfected the technology and, from the early 1980s onward, created a wide range of quartz models – from sporty chronographs to ultra-thin dress watches like this one.
The reference 2C21-0120 was created during this phase as part of the transitional generation between the technically sophisticated 1970s models and the elegantly reduced lines of the late 1980s.
Condition
Good vintage condition with minor signs of wear on the case and crystal. The dial is clean and evenly preserved, the hands show minimal aging. The watch runs accurately.
The battery was replaced in October 2025.
Warranty (used)
This is a used item. The limitation period for claims based on defects (statutory warranty) is 12 months from delivery.
Notice
As this is a pre-owned watch, water resistance cannot be guaranteed. To protect the movement, the watch should not come into contact with water or moisture.
