Seiko Cal. 6277 - 478

The Seiko 6277-478 represents an important milestone in Seiko's 1978 lineup. With its 20mm lug width and 13.8mm profile, it sits comfortably on most wrists. [seikata-wm-781fc79730d9]

Also known as: Sumo, Bullhead

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

39mm

Case Thickness

13.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

50m

Dial Color

Navy

Jewels

23j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1978

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