Seiko Cal. 6637 - 205

The Seiko 6637-205 represents an important milestone in Seiko's 1969 lineup. With its 18mm lug width and 8.0mm profile, it sits comfortably on most wrists. [seikata-wm-95eada24f8a5]

Also known as: Goldfeather

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

40mm

Case Thickness

8.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Burgundy

Jewels

22j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1969

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