Seiko Cal. 5671 - 621

This Spring Drive model from 1968 features a 37mm Gold-Plated case. With its 20mm lug width and 15.9mm profile, it sits comfortably on most wrists. [seikata-wm-56d93a5c58a8]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

15.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Black

Jewels

23j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1968

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