Seiko Cal. 5278 - 643

This Hand-Winding model from 1969 features a 43mm PVD Black case. With its 21mm lug width and 12.4mm profile, it sits comfortably on most wrists. [seikata-wm-2634783a9126]

Also known as: Bellmatic

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

43mm

Case Thickness

12.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Cream

Jewels

23j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1969

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