Seiko Cal. 6684 - 516

This Spring Drive model from 1965 features a 36mm PVD Black case. With its 18mm lug width and 8.6mm profile, it sits comfortably on most wrists. [seikata-wm-5333c07f109b]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

36mm

Case Thickness

8.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

110m

Dial Color

Silver

Jewels

29j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1965

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