Seiko Cal. 6257 - 636

The 6257-636 is a sought-after Automatic piece from Seiko's golden era. With its 21mm lug width and 14.7mm profile, it sits comfortably on most wrists. [seikata-wm-242547c12e16]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

46mm

Case Thickness

14.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

80m

Dial Color

White

Jewels

33j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1976

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