Seiko Cal. 6181 - 615

The Seiko 6181-615 represents an important milestone in Seiko's 1977 lineup. With its 20mm lug width and 13.5mm profile, it sits comfortably on most wrists. [seikata-wm-f270c1dedb48]

Also known as: Bullhead, Sea Horse

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

13.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1977

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