Seiko Cal. 5635 - 221

The Seiko 5635-221 represents an important milestone in Seiko's 1966 lineup. With its 19mm lug width and 15.3mm profile, it sits comfortably on most wrists. [seikata-wm-d42a8d0fe72f]

Also known as: Tuna

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

15.3mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

160m

Dial Color

Green

Jewels

32j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1966

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