Seiko Cal. 5247 - 578

This Hand-Winding model from 1976 features a 40mm Two-Tone case. With its 21mm lug width and 8.0mm profile, it sits comfortably on most wrists. [seikata-wm-5aec31afd528]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

40mm

Case Thickness

8.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1976

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