Seiko Cal. 5663 - 171

The Seiko 5663-171 represents an important milestone in Seiko's 1992 lineup. With its 19mm lug width and 10.2mm profile, it sits comfortably on most wrists. [seikata-wm-9ef0b3100263]

Also known as: Tuna, Bullhead

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

10.2mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Green

Jewels

20j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1992

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