Seiko Cal. 5656 - 721

The Seiko 5656-721 represents an important milestone in Seiko's 1974 lineup. With its 21mm lug width and 12.6mm profile, it sits comfortably on most wrists. [seikata-wm-ef84be5902c2]

Also known as: UFO, Arnie

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

40mm

Case Thickness

12.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Champagne

Jewels

25j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1974

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