Seiko Cal. 6636 - 166

The Seiko 6636-166 represents an important milestone in Seiko's 1997 lineup. With its 22mm lug width and 9.0mm profile, it sits comfortably on most wrists. [seikata-wm-8f0ff0aa8b1e]

Also known as: Golden Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

9.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

60m

Dial Color

Green

Jewels

21j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1997

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