Seiko Cal. 6347 - 778

This Spring Drive model from 1978 features a 45mm Hardlex-Coated Steel case. With its 20mm lug width and 15.7mm profile, it sits comfortably on most wrists. [seikata-wm-c0f0b9854618]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

15.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

40m

Dial Color

Silver

Jewels

30j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1978

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