Seiko Cal. 6678 - 487

This Hand-Winding model from 1965 features a 44mm Hardlex-Coated Steel case. With its 20mm lug width and 12.3mm profile, it sits comfortably on most wrists. [seikata-wm-e62fb46061f3]

Also known as: Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

12.3mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Green

Jewels

22j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1965

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