Seiko Cal. 6257 - 688

Released in 1975, the Cal. 6257 with design code 688 was part of Seiko's domestic market collection. With its 18mm lug width and 9.1mm profile, it sits comfortably on most wrists. [seikata-wm-2710ce6fc81d]

Also known as: Tuna

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

9.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

140m

Dial Color

Champagne

Jewels

21j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1975

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