Seiko Cal. 6171 - 550

The Seiko 6171-550 represents an important milestone in Seiko's 1975 lineup. With its 22mm lug width and 10.2mm profile, it sits comfortably on most wrists. [seikata-wm-14d245e1233d]

Also known as: Monster, Sea Horse

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

10.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Champagne

Jewels

31j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1975

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