Seiko Cal. 6635 - 535

The Seiko 6635-535 represents an important milestone in Seiko's 1980 lineup. With its 19mm lug width and 15.5mm profile, it sits comfortably on most wrists. [seikata-wm-f21f730d5a3e]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

15.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

160m

Dial Color

Black

Jewels

27j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1980

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