Seiko Cal. 6257 - 233

The Seiko 6257-233 represents an important milestone in Seiko's 1977 lineup. With its 22mm lug width and 14.6mm profile, it sits comfortably on most wrists. [seikata-wm-38b3efad7d65]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

14.6mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Black

Jewels

32j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1977

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