Seiko Cal. 6646 - 700

This Spring Drive model from 1979 features a 42mm Stainless Steel case. With its 21mm lug width and 12.2mm profile, it sits comfortably on most wrists. [seikata-wm-d3b1ae5d3f25]

Also known as: Turtle, Goldfeather

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

12.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Silver

Jewels

29j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1979

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